Journal
ONCOLOGY LETTERS
Volume 7, Issue 2, Pages 493-498Publisher
SPANDIDOS PUBL LTD
DOI: 10.3892/ol.2013.1728
Keywords
Dendrobium candidum Wall ex Lindl; cytokine; C57BL; 6 mice; colon carcinogenesis
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Dendrobium candidum Wall ex Lindl. was purchased for the evaluation of azoxymethane (AOM)- and dextran sulfate sodium (DSS)-induced colon carcinogenesis in C57BL/6 mice. The body weights of the AOM- and DSS-induced colon cancer control groups were lighter than those of the untreated mice. D. candidum increased the body weights of the mice compared with the control group, and reduced the levels of the serum proinflammatory cytokines, IL-6, IL-12, TNF- and IFN-, compared with the colon cancer control group. Reverse transcription-polymerase chain reaction and western blot analyses of the apoptotic-related genes, bax, bcl-2, caspase-3 and caspase-9, were performed in the colon tissues. The high-concentration D. candidum group showed a significant increase in the mRNA and protein expression levels of bax, caspase-3 and caspase-9 and decreased expression levels of bcl-2 compared with the control group. These results indicate that D. candidum Wall ex Lindl. exhibits preventive effects against colon carcinogenesis in mice.
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