1390-73-4Relevant articles and documents
Synthesis of multifunctional PAMAM-aminoglycoside conjugates with enhanced transfection efficiency
Ghilardi, Alessandra,Pezzoli, Daniele,Bellucci, Maria Cristina,Malloggi, Chiara,Negri, Armando,Sganappa, Aurora,Tedeschi, Gabriella,Candiani, Gabriele,Volonterio, Alessandro
, p. 1928 - 1936 (2013)
The development of multifunctional vectors for efficient and safe gene delivery is one of the major challenges for scientists working in the gene therapy field. In this context, we have designed a novel type of aminoglycoside-rich dendrimers with a defined structure based on polyamidoamine (PAMAM) in order to develop efficient, nontoxic gene delivery vehicles. Three different conjugates, i.e., PAMAM G4-neamine, -paromomycin, and -neomycin, were synthesized and characterized by nuclear magnetic resonance (NMR) and MALDI analysis. The conjugates were found to self-assemble electrostatically with plasmid DNA, and unlike neamine conjugate, each at its optimum showed increased gene delivery potency compared to PAMAM G4 dendrimer in three different cell lines, along with negligible cytotoxicity. These results all disclosed aminoglycosides as suitable functionalities for tailoring safe and efficient multifunctional gene delivery vectors.
Dehydroxylation of aminosugars
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, (2008/06/13)
Dehydroxylation of aminoglycoside antibiotics is carried out by halogenation of phosphorylated aminoglycoside antibiotics followed by reduction of thus halogenated antibiotics. The dehydroxylation process is entirely new and gives the final product in a high yield. The resulting deoxyaminoglycoside antibiotics are effective against microorganisms including aminoglycoside antiobiotics-resistant microorganisms.