Involvement of PLEKHM1 in osteoclastic vesicular transport and osteopetrosis in incisors absent rats and humans
J. Clin. Invest. Liesbeth Van Wesenbeeck, et al. 117:919 doi:10.1172/JCI30328 [
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Figure 4Characterization of the osteoclasts from the family with autosomal-recessive osteopetrosis. Cells were cultured on dentine discs (
A–
D) or plastic (
E and
F) in the presence of RANKL for 10 days and then fixed, stained, and analyzed by confocal microscopy (
A–
D) or conventional microscopy (
E and
F). (
A) Staining of F-actin with FITC-phalloidin (green stain), acidic vesicles with lysotracker (red stain), and osteoclast membrane with anti-VNR antibodies (blue stain). (
B) Staining of the dentine surface with FL-ALN (green stain) and F-actin with TRITC-phalloidin (red stain). Dark areas correspond to resorption pits (asterisks). (
C) Staining of the dentine surface with FL-ALN and nuclei with Sytox Green (green); F-actin with TRITC-phalloidin (red); osteoclast membrane with anti-VNR antibodies (blue).
A–
C represent 1-μm
xy optical sections;
D represents
zx reconstructions of osteoclasts in
C. Scale bar: 10 μm. (
E and
F) Staining for TRAP in osteoclasts. Original magnification, ×10 (
E) and ×40 (
F).