Table 3.

Summary of the main findings of this study

	HK-2	WT9-7	WT9-12
Pattern of serum-induced proliferation	Increased in a time-dependent manner	Same pattern as HK-2 cells	Same pattern as HK-2 cells
Effect of PDTC on proliferation	Reduced at 4-24 h	Reduced at 8-24 h	Reduced at 24 h
Endogenous NF-κB reporter activity	High	Moderate	Low
Effect of exogenous LPS on NF-κB reporter activity	Increased	No change	No change
Effect of exogenous TNF-α on NF-κB reporter activity	Increased	Increased	Increased
Effect of PDTC on TNF-α-induced NF-κB reporter activity	Reduced	No change	No change
Effect of PDTC on TNF-α-induced nuclear NF-κB protein levels	Reduced p50	Reduced p50	Reduced p50
Effect of exogenous LPS and TNF-α on proliferation at 4 h and 24 h	Same as unstimulated cells	Same as unstimulated cells	Same as unstimulated cells