In vitro , the HK2 cells were treated with iopamidol in the presence or absence of atorvastatin , heat shock protein ( Hsp ) 27 small interfering ( si ) RNA or pcDNA3.1-Hsp27 .
O O O O B-CellLine O O O O B-ChemicalEntity O O O O O O B-ChemicalEntity O B-GeneOrGeneProduct I-GeneOrGeneProduct I-GeneOrGeneProduct I-GeneOrGeneProduct I-GeneOrGeneProduct I-GeneOrGeneProduct I-GeneOrGeneProduct O O O O O O O I-GeneOrGeneProduct O