Journal: Mechanisms of development
Article Title: Expression pattern of mouse sFRP-1 and mWnt-8 gene during heart morphogenesis.
doi: 10.1016/s0925-4773(99)00236-1
Figure Lengend Snippet: Fig. 1. Coexpression analysis of sFRP-1 and mWnt-8 in embryonic heart of embryo from 9.5 (A±D), 11.5 (E±G), 12.5 (H±L) and 17.5 (M±O). I and K are, respectively, the heart structure part of H and L. sFRP-1 and mWnt-8 transcripts were detected respectively with a digoxigenin-labelled sFRP-1 (A,E,H,I,M) or mWnt-8 antisense probe (C,G,K,L,O) and revealed by blue staining. Sections were then counterstained with a nuclear green stain. sFRP-1 protein expression was detected by immunohistochemistry labeling (brown color) (B,D,F,J,N). mWnt-8 transcript expression overlapped with sFRP-1 transcripts and protein expression in the heart. sFRP-1 and mWnt-8 were detected in the wall of the aortic sac (AS), of the sinus venosus (SV) and in the trabeculated wall of the common ventricular heart chamber (V), in the muscular part of the interventricular septum (is) and in the wall of the common atrial chamber atrium (A), but not in the endocardial cushions (ec). sFRP-1 and mWnt-8 are highly expressed in the myocardium (m) from 9.5 to 12.5 d.p.c. but their expression decreased to be undetectable at 17.5 d.p.c. in the heart. No expression was observed in the pericardium (p) or the endocardium (arrow). Magni®cations £ 40 (A±C), £ 10 (D± G), £ 4 (H±L), £ 5 (M±O).
Article Snippet: Sections were counterstained with the nuclear stain methyl green (Vector).
Techniques: Staining, Expressing, Immunohistochemistry, Labeling