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Int. J. Mol. Sci. 2015, 16(7), 14571-14593; doi:10.3390/ijms160714571

Synthesis and Biological Evaluation of Novel Dehydroabietic Acid Derivatives Conjugated with Acyl-Thiourea Peptide Moiety as Antitumor Agents

1
State Key Laboratory Cultivation Base for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry & Pharmaceutical Science of Guangxi Normal University, Yucai Road 15, Guilin 541004, China
2
Department of Chemistry & Pharmaceutical Science, Guilin Normal College, Xinyi Road 21, Guilin 541001, China
These authors contributed equally to this work.
*
Authors to whom correspondence should be addressed.
Academic Editor: William Chi-shing Cho
Received: 28 May 2015 / Revised: 17 June 2015 / Accepted: 18 June 2015 / Published: 26 June 2015
(This article belongs to the Section Biochemistry, Molecular and Cellular Biology)
View Full-Text   |   Download PDF [2117 KB, uploaded 26 June 2015]   |  

Abstract

A series of dehydroabietic acid (DHAA) acyl-thiourea derivatives were designed and synthesized as potent antitumor agents. The in vitro pharmacological screening results revealed that the target compounds exhibited potent cytotoxicity against HeLa, SK-OV-3 and MGC-803 tumor cell lines, while they showed lower cytotoxicity against HL-7702 normal human river cells. Compound 9n (IC50 = 6.58 ± 1.11 μM) exhibited the best antitumor activity against the HeLa cell line and even displayed more potent inhibitory activity than commercial antitumor drug 5-FU (IC50 = 36.58 ± 1.55 μM). The mechanism of representative compound 9n was then studied by acridine orange/ethidium bromide staining, Hoechst 33,258 staining, JC-1 mitochondrial membrane potential staining, TUNEL assay and flow cytometry, which illustrated that this compound could induce apoptosis in HeLa cells. Cell cycle analysis indicated that compound 9n mainly arrested HeLa cells in the S phase stage. Further investigation demonstrated that compound 9n induced apoptosis of HeLa cells through a mitochondrial pathway. View Full-Text
Keywords: dehydroabietic acid; chiral amino acid; thioureas; antitumor activity; apoptosis dehydroabietic acid; chiral amino acid; thioureas; antitumor activity; apoptosis
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Jin, L.; Qu, H.-E.; Huang, X.-C.; Pan, Y.-M.; Liang, D.; Chen, Z.-F.; Wang, H.-S.; Zhang, Y. Synthesis and Biological Evaluation of Novel Dehydroabietic Acid Derivatives Conjugated with Acyl-Thiourea Peptide Moiety as Antitumor Agents. Int. J. Mol. Sci. 2015, 16, 14571-14593.

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