PMID- 20959361 OWN - NLM STAT- MEDLINE DCOM- 20110113 LR - 20211203 IS - 1521-0111 (Electronic) IS - 0026-895X (Linking) VI - 79 IP - 1 DP - 2011 Jan TI - Curcumin dually inhibits both mammalian target of rapamycin and nuclear factor-kappaB pathways through a crossed phosphatidylinositol 3-kinase/Akt/IkappaB kinase complex signaling axis in adenoid cystic carcinoma. PG - 106-18 LID - 10.1124/mol.110.066910 [doi] AB - Adenoid cystic carcinoma (ACC) is a highly malignant tumor that is generally unresponsive or only weakly responsive to the currently available antineoplastic agents. Thus, novel therapeutic strategies and agents are urgently needed to treat this aggressive neoplasm. Curcumin, a component of turmeric (Curcuma longa), has been shown to have a diversity of antitumor activities. We show here that curcumin is a potent inhibitor of ACC progression in vitro and in vivo. Curcumin concentration-dependently inhibited the growth of ACC cells via induction of apoptosis. The ability of ACC cells to migrate/invade and induce angiogenesis was also significantly attenuated by curcumin, accompanied by the down-regulation of vascular endothelial growth factor (VEGF) and matrix metalloproteinase-2 and -9. Moreover, our data also demonstrated that the inhibitory effects of curcumin on ACC cells were due to its dual inhibition of both mammalian target of rapamycin (mTOR) and nuclear factor-kappaB (NF-kappaB) pathways through a crossed phosphatidylinositol 3-kinase/Akt/IkappaBalpha kinase signaling axis. Most importantly, curcumin effectively prevented the in vivo growth and angiogenesis of ACC xenografts in nude mice, as revealed by the induction of cell apoptosis and reduction of microvessel density in tumor tissues. In addition, we further assessed the nature activation status of both mTOR and NF-kappaB pathways in ACC tissues and confirmed the concurrent high activation of these two pathways in ACC for the first time. Taken together, our findings suggest that further clinical investigation is warranted to apply curcumin as a novel chemotherapeutic regimen for ACC because of its dual suppression of both mTOR and NF-kappaB pathways. FAU - Sun, Zhi-Jun AU - Sun ZJ AD - The State Key Laboratory Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine Ministry of Education, Wuhan University, Wuhan, China. FAU - Chen, Gang AU - Chen G FAU - Zhang, Wei AU - Zhang W FAU - Hu, Xiang AU - Hu X FAU - Liu, Yang AU - Liu Y FAU - Zhou, Qian AU - Zhou Q FAU - Zhu, Ling-Xing AU - Zhu LX FAU - Zhao, Yi-Fang AU - Zhao YF LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20101019 PL - United States TA - Mol Pharmacol JT - Molecular pharmacology JID - 0035623 RN - 0 (I kappa B beta protein) RN - 0 (I-kappa B Proteins) RN - 0 (NF-kappa B) RN - 0 (Phosphoinositide-3 Kinase Inhibitors) RN - EC 2.7.1.1 (mTOR protein, mouse) RN - EC 2.7.1.137 (Phosphatidylinositol 3-Kinase) RN - EC 2.7.11.1 (Proto-Oncogene Proteins c-akt) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) RN - IT942ZTH98 (Curcumin) SB - IM EIN - Mol Pharmacol. 2011 Mar;79(3):628-30 MH - Animals MH - Carcinoma, Adenoid Cystic/drug therapy/*enzymology MH - Cell Line MH - Cell Line, Tumor MH - Chickens MH - Curcumin/*pharmacology/therapeutic use MH - Female MH - I-kappa B Proteins/*antagonists & inhibitors/metabolism MH - Mice MH - Mice, Inbred BALB C MH - Mice, Nude MH - NF-kappa B/*antagonists & inhibitors/metabolism MH - Phosphatidylinositol 3-Kinase/metabolism MH - *Phosphoinositide-3 Kinase Inhibitors MH - Proto-Oncogene Proteins c-akt/*metabolism MH - Random Allocation MH - Rats MH - Signal Transduction/*drug effects/physiology MH - TOR Serine-Threonine Kinases/*antagonists & inhibitors/metabolism MH - Xenograft Model Antitumor Assays/methods EDAT- 2010/10/21 06:00 MHDA- 2011/01/14 06:00 CRDT- 2010/10/21 06:00 PHST- 2010/10/21 06:00 [entrez] PHST- 2010/10/21 06:00 [pubmed] PHST- 2011/01/14 06:00 [medline] AID - mol.110.066910 [pii] AID - 10.1124/mol.110.066910 [doi] PST - ppublish SO - Mol Pharmacol. 2011 Jan;79(1):106-18. doi: 10.1124/mol.110.066910. Epub 2010 Oct 19.