Bone marrow stem cells contribute to repair of the ischemically injured renal tubule
J. Clin. Invest. Sujata Kale, et al. 112:42 doi:10.1172/JCI17856 [
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Figure 5Bone marrow–derived cells express the renal proximal tubule–specific marker megalin. Sections from kidneys of mice that underwent 25 minutes of ischemia 16 weeks after BMT, followed by 1 week of reflow, were double stained with X-gal (
a) and the proximal tubule–specific marker megalin (
b). Tubules from the outer medulla that contain cells derived from the bone marrow of the Rosa26 mouse (
a, arrow) express megalin on their apical surface (
b, arrow), with the merged image showing double staining of the same cell (
c, arrows). Two other S3 tubules are shown that express megalin (
b, arrowheads) but are not β-galactosidase positive (
a, arrowheads). Megalin and β-galactosidase–negative tubules seen faintly in the background represent medullary thick ascending limbs and collecting ducts.