TY - JOUR
T1 - Multi drug resistance-1 (MDR1) expression in response to chronic diazinon exposure
T2 - An in vitro study on Caco-2 cells
AU - Habibollahi, Peiman
AU - Ghahremani, Mohammad Hossein
AU - Azizi, Ebrahim
AU - Ostad, Seyed Nasser
PY - 2011/1
Y1 - 2011/1
N2 - To evaluate the effect of chronic exposure to diazinon in the gastrointestinal tract, Caco-2 cells were made resistant by growing in low concentrations of diazinon (0.02 μM) that was gradually increased to 20 μM within 4.5 months. Resistant cells showed significant higher growth in the presence of 15, 45 and 135 μM of diazinon (96.08, 81.80 and 65.16% of control) compared to parent cells (79.71, 71.76 and 29.50% of control, respectively; p < 0.05). P-glycoprotein (P-gp) expression increased significantly in resistant cells (P-gp to beta-actin ratio 0.586 for parent and 1.255 for resistant cells, respectively; p < 0.05) without any alteration in MDR-1 mRNA level (p > 0.05).
AB - To evaluate the effect of chronic exposure to diazinon in the gastrointestinal tract, Caco-2 cells were made resistant by growing in low concentrations of diazinon (0.02 μM) that was gradually increased to 20 μM within 4.5 months. Resistant cells showed significant higher growth in the presence of 15, 45 and 135 μM of diazinon (96.08, 81.80 and 65.16% of control) compared to parent cells (79.71, 71.76 and 29.50% of control, respectively; p < 0.05). P-glycoprotein (P-gp) expression increased significantly in resistant cells (P-gp to beta-actin ratio 0.586 for parent and 1.255 for resistant cells, respectively; p < 0.05) without any alteration in MDR-1 mRNA level (p > 0.05).
KW - Caco-2
KW - Diazinon
KW - Multi drug resistance 1
KW - P-glycoprotein
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U2 - 10.1007/s00128-010-0158-y
DO - 10.1007/s00128-010-0158-y
M3 - Article
C2 - 21127835
AN - SCOPUS:79251621964
SN - 0007-4861
VL - 86
SP - 105
EP - 109
JO - Bulletin of Environmental Contamination and Toxicology
JF - Bulletin of Environmental Contamination and Toxicology
IS - 1
ER -