a-d. T-HEp3 cells with ERK, p38 and p27 activity biosensors were
reversed transfected with control siRNA or siRNAs for TGFBRIII and BMPRII
followed by 24-hour treatments with TGFβ2 and BMP7. a. TGFBRIII and
BMPRII mRNA levels 48 hours after transfection with the indicated siRNAs
(n=3 independent experiments, mean, minimum and maximum, 2-tailed
Mann–Whitney tests, p=0.01 (TGFbR3) and 0.002 (BMPR2)). b-d.
Quantification of the T-HEp3-biosensors activity (n=3 independent
experiments each, mean, minimum and maximum, 2-tailed Mann–Whitney
tests, p=0.05). e. Percentage of E0771 cells in a single cell (p=0.002),
doublet or cluster (p=0.005) state after co-culture with Control (passaged)
or revitalized (r) MSCs (n=4 independent experiments, 4 wells per condition
per experiment, mean and SEM, 2-tailed Mann–Whitney tests). f. qPCR
of TGFβ1, TGFβ2 and BMP7 from Control and rMSCs (n=2).
*p≤0.05, p-values indicated above.