Prox1 during maturation of the AL of Henle’s loop in mouse kidney development.

<p>Triple immunofluorescence staining of Prox1 (red), CLC-K1 (green), and THP (white) in the renal papilla of 14-day-old pups. Prox1 was observed in the transforming region from TAL to ATL (F–J) and was not expressed in the mature TAL (A–E) or mature ATL (K–O). Blue counterstain: DAPI. Scale bars: 20 μm