TABLE 2.

Real-time reverse transcription-PCR confirmation of array data

Gene	In vitro infection with M. tuberculosis	Expression level for I/St vs A/Sn macrophages
		PCRa	Microarrayb
Il-11	−	8.9	5.0
	+	7.6	3.7
Il-6	−	3.6	2.1
	+	4.5	2.2
Mmp8	−	−3.4c	NSd
	+	−5.4	−2.1
Cxcl14	−	11.1	4.2
	+	9.6	3.5
Cxcl13	−	28.1	5.1
	+	30.7	7.2
Saa3	−	9.3	2.5
	+	12.3	2.3

^aMean fold change in expression level for three experiments.

^bFold change in gene expression revealed by SAM analysis of three microarray hybridization sets.

^cNegative numbers indicate that the gene is expressed at a higher level in A/Sn macrophages.

^dNS, not significant.