Table 4.

mRNA expression for a panel of cation transporters according to tumor MIBG avidity in 27 patients with neuroblastoma and centrally reviewed MIBG scans.^a

	MIBG Avid (n = 19)	MIBG Nonavid (n = 8)
Median OCT1 mRNA	0.17%	0.11%
(range)	(0.04–0.48%)	(0.03–0.90%)
Median OCT3 mRNA	0.60%	1.3%
(range)	(0.04–127%)	(0–6.47%)
Median MATE1 mRNA	5.9%	8.2%
(range)	(0.39–57%)	(0.43–102%)
Median VMAT1 mRNA	89%	13%
(range)	(0.68–348%)	(0.43–1590%)
Median VMAT2 mRNA	175%	27%
(range)	(2.7–2661%)	(0.98–1253%)

^aTransporter expression is expressed as a percent of PGK1 expression. OCT2 mRNA expression was observed in only two tumors.