Organotypic Cultures of Intervertebral Disc Cells: Responses to Growth Factors and Signaling Pathways Involved

Table 1

Regulation of PDGF-stimulated DNA synthesis in monolayer NP cultures by CSA.

CSA concentration (μg/mL)	PDGF-BB concentration (ng/mL)
	0	10
0	34.5% (±2.5)	58.1% (±2.1)
250	10.2% (±3.6)	46.2% (±10.2)

Percentage of BrdU-positive nuclei (mean ± SEM from three independent cultures; three representative fields were counted in each culture).