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Carboxyl-modified single-walled carbon nanotubes selectively induce human telomeric i-motif formation
Open accessAbstract
As the leading nanodevice candidate, single-walled carbon nanotubes (SWNTs) have potential therapeutic applications in gene therapy and novel drug delivery. We found that SWNTs can inhibit DNA duplex association and selectively induce human telomeric i-motif DNA formation by binding to the 5′-end major groove under physiological conditions or even at pH 8.0. SWNT binding to telomeric DNA was studied by UV melting, NMR, S1 nuclease cleavage, CD, and competitive FRET methods. These results suggest that SWNTs might have the intriguing potential to modulate human telomeric DNA structures in vivo , like biologically relevant B-A and B-Z DNA transitions, which is of great interest for drug design and cancer therapy.
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Self-citationFunctionalized carbon nanotubes for potential medicinal applications
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Metadata
- Authors
- Li, X., Peng, Y., Ren, J., & Qu, X.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2006-12-26
- Volume
- 103
- Issue
- 52
- Pages
- 19658-19663
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W1966501382
- Cited by
- 273
- References
- 25
- FWCI
- 4.05
- Type
- journal article
- Language
- en
- Open access
- bronze
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