Background: Gene therapy is an expanding field and it can treat genetic and acquired diseases.
Objective: It was found that formulations with DNA: CM-β–CD (Carboxymethyl-beta-cyclodextrin):
Pluronic-F127 1:3:3 and 1:3 DNA: CM-β–CD are the most stable formulations indicating high incorporation
of DNA within CM-β –CD.
Method: Gel electrophoresis revealed DNA with low CM-β –CD concentration has formed a more stable
complex. Samples 1:3 DNA: CM-β–CD and 1:3:3 DNA: CM-β–CD: Pluronic-127 show no DNA
fragment, suggesting good condensation of DNA inside cyclodextrin cavity.
Results: This was confirmed by fluorescence data where fluorescence intensity was reduced for samples
DNA: CM-β–CD 1:3. Overall, the findings showed that Carboxymethyl-beta-cyclodextrin (as a novel
non-viral gene vector) was able to provide condensation and protection to the DNA, with and without
Pluronic-F127, at low concentration.
Conclusion: pDNA/CM-β–CD complex has not only shown to be able to transfect COS 7 and SHSY5Y
cell lines, but it gives a higher transfection efficiency than that produced by the TransIT-LT1
commercial transfection reagent.