| Literature DB >> 16051031 |
K Melancon1, Q Cheng, T L Kiefer, J Dai, L Lai, C Dong, L Yuan, A Collins, A Thiyagarajah, S Long, S M Hill.
Abstract
A significant increase in tumor regression was induced in N-nitroso-N-methylurea-induced mammary tumors in rats treated with the combination of melatonin and 9-cis-retinoic acid (9cRA). Treatment groups included: control (ethanolic saline), 9cRA (30 mg/kg chow/day), melatonin 500 microg/day, melatonin 1000 microg/day, melatonin 500 microg/day+9cRA and melatonin 1000 microg/day+9cRA. Rats treated with the lower dose of melatonin 500 microg+9cRA show the greatest degree of tumor regression (78%), with 54% undergoing complete regression and a significant increase in apoptotic cells observed by TUNEL Assay. Furthermore, tumor multiplicity and burden were significantly decreased by the combination of melatonin and 9cRA.Entities:
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Year: 2005 PMID: 16051031 DOI: 10.1016/j.canlet.2005.01.005
Source DB: PubMed Journal: Cancer Lett ISSN: 0304-3835 Impact factor: 8.679