Table 2.

Partition 1 data expression validation by qRT-PCR

Gene name (accession no.)Arrays (Cl-nCl)qRT-PCR (Cl-nCl)ρ
ADAMTS9 (BX094698)2.6882026 (P = 1.018e−7)2.0976887 (P = 0.00009077)0.7248384 (P ≤ 2.2e−16)
CDH9 (NM_016279)3.7667154 (P = 0.05345)3.537528 (P = 0.009844)0.8809524 (P = 0.007242)
CTH (NM_001902)1.7961264 (P = 0.00009343)1.5353106 (P = 0.002965)0.6839744 (P ≤ 2.2e−16)
GRB14 (XM_001131281)1.6008336 (P = 0.00011)1.557095 (P = 0.00335)0.7481759 (P ≤ 2.2e−16)
IGFBP1 (NM_000596)3.8279291 (P = 0.000003487)1.5353106 (P = 1.587e−7)0.868902 (P = 4.256e−14)
NDRG1 (AL550073)0.88948457 (P = 0.005667)1.4797459 (P = 0.0001684)0.4770345 (P = 0.000312)
  • NOTE: For 6 analyzed genes, mean group differences between clear cells (Cl) and non-clear cells (nCl) samples using microarray technology or qRT-PCR are reported. From left to right, the columns refer to gene name with GenBank accession no.; arrays log ratio values; qRT-PCR results calculated with the −ΔΔCt protocol and the correlation value (ρ) between the two assays using the Spearman's test. P is the P value referred to Welch t test or correlation test as appropriate (P < 0.05).