Journal
MOLECULES
Volume 17, Issue 6, Pages 7556-7568Publisher
MDPI AG
DOI: 10.3390/molecules17067556
Keywords
NO donor; oridonin; hybrid; anti-tumor agents; SAR
Funding
- National Natural Science Fund [30973610]
- Ministry of Education of China [108069]
- Specialized Research Fund for the Doctoral Program of Higher Education [20100096110001]
- Project for Research and Innovation of Graduates in Universities of Jiangsu Province [CXZZ11-0800]
- Fundamental Research Funds for the Central Universities [JKY2011030]
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To search for novel nitric oxide (NO) releasing anti-tumor agents, a series of novel furoxan/oridonin hybrids were designed and synthesized. Firstly, the nitrate/nitrite levels in the cell lysates were tested by a Griess assay and the results showed that these furoxan-based NO-releasing derivatives could produce high levels of NO in vitro. Then the anti-proliferative activity of these hybrids against four human cancer cell lines was also determined, among which, 9h exhibited the most potential anti-tumor activity with IC50 values of 1.82 mu M against K562, 1.81 mu M against MGC-803 and 0.86 mu M against Bel-7402, respectively. Preliminary structure-activity relationship was concluded based on the experimental data obtained. These results suggested that NO-donor/natural product hybrids may provide a promising approach for the discovery of novel anti-tumor agents.
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