Proliferation activity recorded in AEC maintained in culture for 28 days alone or in co-incubation with tenocytes and tendon explants derived from fetal or adult calcaneal tendons.

The doubling time was expressed as media ± SD of 3 replicates obtained from at least 3 different experiments. The data were compared by One Way ANOVA test followed by post-hoc Tukey test.*Asterisk indicates values significantly different within the column (pThe proliferation indexes are expressed as the % of Ki-67 positive cells/total cells recorded in 3 replicates obtained from at least 3 different experiments/group. The data were compared by One Way ANOVA test followed by post-hoc Tukey test.a,bDifferent superscripts indicate values significantly different within each column (p