Table 3. Validation of the results by qRT-PCR analysis.

Gene	SK-OV-3cycling vs.control foldchange(array/qRT-PCR)	SK-OV-3chronic vs.control foldchange(array/qRT-PCR)	PC-3 cyclingvs. controlfold change(array/qRT-PCR)	PC-3 chronicvs. controlfold change(array/qRT-PCR)	WM793Bcycling vs.controlfoldchange(array/qRT-PCR)	WM793B chronic vs. control foldchange (array/qRT-PCR)
Il8	9.1/ 6.2#	1.8/2.2#	6.5/3.5	9.2/4.5	0.9/0.65	1.0/1.0
AREG	2.7/1.75#	0.15/0.5#	2.4/1.8*	1.15/0.8*	Low or noexpression	Low or noexpression
HBEGF	5.7/2.25#	1.0/1.45#	3.0/0.86	2.4/1.8	Low/1.45	Low/0.75
EPHA2	4.4/2.2*	1.8/2.1*	1.0/1.3*	0.82/0.8*	1.3/1.25*	0.9/1.0
PLAU	4.2/1.8	2.1/1.6	2.4/2.1*	1.4/0.6*	Low or noexpression	Low or noexpression
CXCL2	2.3/2.9#	0.25/1.6	3.4/3.1*	3.7/2.3*	0.2/0.3*	0.8/0.7

In bold are results showing the differential gene expression between cycling and chronic samples assessed by qRT-PCR. The results marked with * are statistically significant (p<0.05; U Mann-Whitney test), whereas those marked with # have p = 0.051.