Fig. 8. Man1 is required for cell survival and normal nuclear morphology.
Immunostaining on serial paraffin-embedded sections from wild-type and mutant
embryos at the 17-somite stage with antibodies to phospho-histone H3 (PH3;
A,B), activated caspase 3 (aCas3; C,D) and
single-strand DNA (ssDNA; E,F). (G,H)
Hematoxylin-Eosin staining as a reference. ot, otic vesicle; ba, first
branchial arch; op, optic vesicle; fb, forebrain vesicle. (I-O)
Transmission electron microscopy of wild-type (I,K) and
Man1
/
(J,L-O) embryos at E9.5. (I,J) The
mesenchyme in the branchial region. (K-O) The nuclear shapes of wild-type and
Man1
/
mesenchymal cells. The insets in M and
N show herniated nuclei. Arrow in O indicates an expanded perinuclear space.
Scale bars: 100 µm in A-H; 10 µm in I,J; 1.0 µm in K-O.