Abstract
Novel furoxan-based nitric oxide (NO)-releasing DDB derivatives (7a-j) were synthesized. Compounds 7i and 7j significantly reversed the resistance of MCF-7/Adr cells to doxorubicin in the combination treatment, and markedly increased the intracellular accumulation of doxorubicin probably via inhibiting Pgp-mediated intracellular drug efflux as well as down-regulating doxorubicin-induced Pgp expression. It was demonstrated that NO released by 7i and 7j played an important role in increasing intracellular doxorubicin accumulation and chemo-sensitizing MCF-7/Adr cells to doxorubicin, and the synergic effects of DDB and NO-donor moieties in 7i and 7j may contribute to reversing Pgp-mediated MDR in MCF-7/Adr cells to doxorubicin.
| Original language | English |
|---|---|
| Pages (from-to) | 801-805 |
| Number of pages | 5 |
| Journal | Bioorganic and Medicinal Chemistry Letters |
| Volume | 22 |
| Issue number | 2 |
| DOIs | |
| State | Published - 15 Jan 2012 |
| Externally published | Yes |
Keywords
- DDB
- MDR reversal agents
- Multidrug resistance (MDR)
- NO-releasing derivatives
- Pgp inhibitor
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