%0 Journal Article %T <i>In Vitro</i> Study of the Nephrotoxicity of Tripterygium Tablet Extract and Triptolide in Monolayer HK-2 Cells Cultured in a Transwell Chamber %A Ran Hao %A Lianqiang Hui %A Chun Li %A Chunyu Cao %A Yifei Yang %A Jiyuan Zhang %A Ting Liu %A Yi Zhang %J Chinese Medicine %P 34-54 %@ 2151-1926 %D 2018 %I Scientific Research Publishing %R 10.4236/cm.2018.91003 %X We established a monolayer polarized cell model using human kidney 2 (HK-2) cells cultured in a transwell chamber to examine the changes in the morphology and physiological functions of human-derived renal proximal tubular epithelial cells caused by tripterygium tablet extract (TTE) and triptolide. HK-2 cells were cultured on PCF membranes to form a complete monolayer of cells. A MTT assay was used to select 10, 40, 160, 640 μg,ml-1 TTE or 4, 16, 64, 256 ng,ml-1 triptolide to treat HK-2 monolayer cells. After 24 hours, a FITC permeability assay was performed; GGT, LDH and NAG secretion on the apical (AP) and basolateral (BL) sides of the cells by HK-2 cells were examined. The morphology and the monolayer structure of HK-2 cells was observed via optical microscope and scanning electron microscope, respectively. The effect on the cytoskeleton of HK-2 cells was observed under a fluorescence microscope. The IC50 of TTE was 277.122 μg,ml-1, and the IC50 of triptolide was 148.035 ng,ml-1. Compared with the DMSO group, the FITC leakage rate with TTE 160, 640 μg,ml-1 treated group and 4 - 256 ng,ml-1 triptolide dose group exhibited statistically significant increase. TTE significantly increased secretion of GGT and LDH at 160, 640 μg,ml-1, meanwhile, dramatically increased the AP/BL ratio of LDH at 160 μg,ml-1; triptolide significantly increased secretion and AP/BL ratio of GGT and LDH at 256 ng,ml-1. The morphological observations via optical and electron %K Nephrotoxicity %K Tripterygium Tablet Extract %K Triptolide %K HK-2 Cell %K Transwell Chamber %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=83001