TABLE 1.

Cytokine secretion by control (CEM) and HTLV-1-infected (CH and MT2) lymphocytes in single cultures and cocultures with GPNT brain endothelial cells for 24 h

Cell line	Amt secreted (pg/ml)a
	TNF-α	IL-1β
CEM	<1.4	<0.4
CH	17 ± 4	<0.4
MT2	280 ± 27	<0.4
GPNT	<1.4	1.2 ± 0.1
+ CEM	<1.4	3.2 ± 0.8
+ CH	30 ± 5b	0.5 ± 0.1
+ MT2	492 ± 18b	1.5 ± 0.3

^aResults are means ± standard errors or the mean and represent two separate experiments with triplicate wells. 

^bSignificantly different compared to single cultures (P < 0.05).