Abstract：
:The effect of noncytotoxic doses of argemone oil (AO) and butter yellow (BY), the common adulterants in edible oil, on free radical generation and signaling pathway for cell proliferation in primary cells of gall bladder (GB) was undertaken. AO and BY showed no cytotoxicity at 0.1 μl/ml and 0.1 μg/ml concentration, respectively. AO caused significant increase in ROS after 30 min and RNS after 24 h in GB cells while no change was observed following BY treatment. Enhanced level of COX-2 was observed following AO (0.1 μl/ml) and BY (0.1 μg/ml) treatment to cells for 24 h. AO treatment caused phosphorylation of ErbB2, AKT, ERK, and JNK along with increased thymidine uptake indicating cell proliferation ability in GB cells. BY treatment also showed significant expression of these proteins with the exception of phosphorylated JNK. These results suggest that AO and BY have cell proliferative potential in GB cells following up-regulation of COX-2 and ErbB2; however, their downstream signaling molecules and free radical generation have differential response, indicating that the mechanism of proliferation is different for both compounds and may have relevance in gall bladder cancer.
journal_name
Cell Biol Toxicoljournal_title
Cell biology and toxicologyauthors
Mishra V,Ansari KM,Khanna R,Das Mdoi
10.1007/s10565-011-9207-5subject
Has Abstractpub_date
2012-06-01 00:00:00pages
149-59issue
3eissn
0742-2091issn
1573-6822journal_volume
28pub_type
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