Table 1.

Table illustrates the chemokine response profile of acutely dissociated DRG cells from rats with and without peripheral nerve injury (n = 5/group). The cells were imaged while the various chemokines were added to the bathing solution. A rise in (Ca)i after chemokine application was indicative of the expression of a functional chemokine receptor. After chemokine application, capsaicin, high K+ and ATP were used to characterize the identity of the cells (see text). Note the upregulation of chemokine signaling at 14 and 28 days after peripheral nerve demyelination in isolated DRG cells ipsilateral to the nerve injury. There was also an upward trend in chemokine signaling in the cells isolated from the DRG contralateral to nerve injury at POD 14–28. By POD 35, chemokine responsiveness returned to baseline levels.

	Control		POD 14		POD 28		POD 35
Chemokine	Ipsilateral	Contralateral	Ipsilateral	Contralateral	Ipsilateral	Contralateral	Ipsilateral	Contralateral
MCP-1	5.8%	7.9%	11.6%	2.5%	31.7% **	15.1%	2.4%	0.0%
SDF1	5.8%	7.0%	2.3%	5.0%	25% **	8.2%	7.3%	6.6%
RANTES	5.8%	7.0%	23.2% **	2.5%	8.3%	13.6%	9.7%	3.3%
IP-10	9.6%	8.8%	0.0%	20.0%	21.1%*	8.2%	7.3%	6.6%

*p < 0.01

** p < 0.05

n = 5/age group