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<tspan x="500" y="600">The Binding - The Nanobody, a single domain antibody,</tspan> | <tspan x="500" y="600">The Binding - The Nanobody, a single domain antibody,</tspan> | ||
− | <tspan x="500" y=" | + | <tspan x="500" y="630">binds to the CEA with a very high specificity.</tspan> |
− | <tspan x="500" y=" | + | <tspan x="500" y="660">With its easy production and high stability it makes </tspan> |
− | <tspan x="500" y=" | + | <tspan x="500" y="690">the perfect binding tool for our project.</tspan> |
</text> | </text> | ||
</g> | </g> | ||
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id="text4710"> | id="text4710"> | ||
<tspan x="500" y="600">Glutathione S-Transferase forms the reaction from</tspan> | <tspan x="500" y="600">Glutathione S-Transferase forms the reaction from</tspan> | ||
− | <tspan x="500" y=" | + | <tspan x="500" y="630">the inactive prodrug azathioprine to the active 6-Mercaptopurine, </tspan> |
− | <tspan x="500" y=" | + | <tspan x="500" y="660">which replaces adenine and guanine in the DNA and finally </tspan> |
− | <tspan x="500" y=" | + | <tspan x="500" y="690">leads to the apoptosis of the cell.</tspan> |
</text> | </text> | ||
</g> | </g> |
Revision as of 02:24, 18 October 2016
Overview
The treatment of diseases while avoiding systemic side effects is still a major obstacle in modern medicine. After administration, conventional drugs are distributed throughout the whole body thus affecting both, diseased and healthy cells. Current strategies on targeted drug delivery are mainly based on the applications of antibody-drug conjugates or nanoparticles. However, both approaches revealed considerable challenges in their application due to short half-life and expensive production, respectively. We develop a novel platform for targeted drug delivery by implementing highly specific nanobodies directed against surface markers of affected cells. The combination with an enzymatic functionality facilitates the local activation of prodrugs, thus preventing unnecessary side effects by systemic drug dispersal. By engineering the spores of probiotic Bacillus subtilis, a member of the human microbiome, we establish a low-cost carrier for well-tolerated treatment.