Sökning: "drug resistance 1"
Visar resultat 1 - 5 av 305 avhandlingar innehållade orden drug resistance 1.
1. Studies of Retroviral Reverse Transcriptase and Flaviviral Protease Enzymes as Antiviral Drug Targets : Applications in Antiviral Drug Discovery & Therapy
Sammanfattning : Viruses are a major threat to humans due to their unique adaptability, evolvability and capability to control their hosts as parasites and genetic elements. HIV/AIDS is the third largest cause of death by infectious diseases in the world, and drug resistance due to the viral mutations is still the leading cause of treatment failure. LÄS MER
2. Exploring Inhibitors of HIV-1 Protease : Interaction Studies with Applications for Drug Discovery
Sammanfattning : A variety of HIV-1 protease inhibitors and their interactions with the enzyme have been characterized in order to identify novel and improved drugs against AIDS. The investigated inhibitors were represented by clinical and non-clinical inhibitors, active site and allosteric inhibitors, transition-state analogues and metal-ions. LÄS MER
3. Biosensor Studies of Ligand Interactions with Structurally Flexible Enzymes : Applications for Antiviral Drug Development
Sammanfattning : The use of a surface plasmon biosensor fills a missing link in kinetic studies of enzymes, since it measures directly the interaction between biomolecules and allows determination of parameters that are determined only indirectly in activity assays. The present thesis deals with kinetic and dynamic aspects of ligand binding to two viral enzymes: the human cytomegalovirus (HCMV) protease and the human immunodeficiency virus type 1 reverse transcriptase (HIV-1 RT). LÄS MER
4. Chemotherapy in Childhood Acute Lymphoblastic Leukemia : In vitro cellular drug resistance and pharmacokinetics
Sammanfattning : The aims of the studies described in this thesis were to investigate the pharmacokinetics of and cellular resistance to chemotherapy as causes of treatment failure in childhood acute lymphoblastic leukemia (ALL).Leukemic cells from 370 children with newly diagnosed ALL were tested by the Fluorometric Microculture Cytotoxicity Assay to measure their resistance to each of ten standard cytotoxic drugs. LÄS MER
5. Fragment Based Drug Discovery with Surface Plasmon Resonance Technology
Sammanfattning : Fragment based drug discovery (FBDD) has been applied to two protease drug targets, MMP-12 and HIV-1 protease. The primary screening and characterization of hit fragments were performed with surface plasmon resonance -technology. Further evaluation of the interaction was done by inhibition studies and in one case with X-ray crystallography. LÄS MER
