Figure 4From: Vectorial secretion of CTGF as a cell-type specific response to LPA and TGF-β in human tubular epithelial cellsSecretion of fibronectin. Polarized hPTEC were stimulated with TGF-β from the basolateral and from the apical side for 24 to 72 h. Secreted CTGF and fibronectin were detected in the basolateral (b) or apical (a) compartment. The blot is representative of 3 experiments with different hPTEC isolations. In the experiment shown CTGF was below the detection limit in the basolateral compartment.Back to article page