Table 2.

Quantitative analysis of dye-coupling in GL15 cell cultures

	n° of dye-coupled cells/
GL15 cell cultures	injection ± s.e.m.	% of communicating cells
	(n°)
undifferentiated	8.13 ± 0.74	100
sub-confluent	(63)
undifferentiated	3.91 ± 0.42	48.09
confluent	(64)
differentiated	1.59 ± 0.25	19.55
confluent	(59)

The communication capacity of GL15 cells was quantified by counting the number of fluorescent cells surrounding the microinjected ones (n° of dye-coupled cells/injection) ± s.e.m.; n° = number of independent microinjections.