4'-O-Substitutions Determine Selectivity of Aminoglycoside AntibioticsPerez-Fernandez, D., Shcherbakov, D., Matt, T., Leong, N.C., Kudyba, I., Duscha, S., Boukari, H., Patak, R., Dubakka, S.R., Lang, K., Meyer, M., Akbergenov, R., Freihofer, P., Vaddi, S., Thommes, P., Ramakrishnan, V., Vasella, A., Bottger, E.C.
(2014) Nat.Commun. 5: 3112
- PubMed: 24473108
- DOI: 10.1038/ncomms4112
- Primary Citation of Related Structures:  4B3M, 4B3R, 4B3T
- PubMed Abstract:
Clinical use of 2-deoxystreptamine aminoglycoside antibiotics, which target the bacterial ribosome, is compromised by adverse effects related to limited drug selectivity. Here we present a series of 4',6'-O-acetal and 4'-O-ether modifications on gluc ...
Clinical use of 2-deoxystreptamine aminoglycoside antibiotics, which target the bacterial ribosome, is compromised by adverse effects related to limited drug selectivity. Here we present a series of 4',6'-O-acetal and 4'-O-ether modifications on glucopyranosyl ring I of aminoglycosides. Chemical modifications were guided by measuring interactions between the compounds synthesized and ribosomes harbouring single point mutations in the drug-binding site, resulting in aminoglycosides that interact poorly with the drug-binding pocket of eukaryotic mitochondrial or cytosolic ribosomes. Yet, these compounds largely retain their inhibitory activity for bacterial ribosomes and show antibacterial activity. Our data indicate that 4'-O-substituted aminoglycosides possess increased selectivity towards bacterial ribosomes and little activity for any of the human drug-binding pockets.
1] Laboratorium für Organische Chemie, ETH Zürich, Wolfgang-Pauli-Strasse 10, 8093 Zürich, Switzerland .