In Vivo Therapeutic Silencing of Hypoxia-Inducible Factor 1 Alpha (HIF-1\alpha) Using Single-Walled Carbon Nanotubes Noncovalently Coated with siRNA
COGNET, Laurent
Department of Chemistry
Centre de physique moléculaire optique et hertzienne [CPMOH]
< Reduce
Department of Chemistry
Centre de physique moléculaire optique et hertzienne [CPMOH]
Language
en
Article de revue
This item was published in
Nano Research. 2009-04-17, vol. 2, n° 4, p. 279-291
Springer
English Abstract
A new approach is described for delivering small interfering RNA (siRNA) into cancer cells by noncovalently complexing unmodifi ed siRNA with pristine single-walled carbon nanotubes (SWCNTs). The complexes were prepared ...Read more >
A new approach is described for delivering small interfering RNA (siRNA) into cancer cells by noncovalently complexing unmodifi ed siRNA with pristine single-walled carbon nanotubes (SWCNTs). The complexes were prepared by simple sonication of pristine SWCNTs in a solution of siRNA, which then served both as the cargo and as the suspending agent for the SWCNTs. When complexes containing siRNA targeted to hypoxiainducible factor 1 alpha (HIF-1\alpha) were added to cells growing in serum containing culture media, there was strong specific inhibition of cellular HIF-1\alpha activity. The ability to obtain a biological response to SWCNT/ siRNA complexes was seen in a wide variety of cancer cell types. Moreover, intratumoral administration of SWCNT- HIF-1\alpha siRNA complexes in mice bearing MiaPaCa-2 /HRE tumors signifi cantly inhibited the activity of tumor HIF-1 . As elevated levels of HIF-1\alpha are found in many human cancers and are associated with resistance to therapy and decreased patient survival, these results imply that SWCNT/siRNA complexes may have value as therapeutic agents.Read less <
English Keywords
siRNA
single-walled carbon nanotubes
anti-cancer therapy
in vivo delivery agent
Origin
Hal imported