Key result
Pitx2 null murine embryos exhibited dramatically altered cardiac cell composition and disrupted differentiation dynamics of second heart field-derived progenitor cells.
Why the study?
Disruption of PITX2 causes congenital heart diseases and is associated with atrial fibrillation, but the cellular and molecular processes dictated by Pitx2 during cardiac ontogeny remain unclear.
Population
Over 75,000 single cardiac cell transcriptomes from control and Pitx2 null murine embryos
Comparison
Pitx2 null embryos vs control embryos at E10.5 and E13.5
Design
Single-cell transcriptomic study in murine embryos
Authors
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Single-cell atlas of Pitx2-dependent lineages leaves open causal roles in congenital defects; functional validation required before clinical translation.
Single-cell transcriptomic analysis reveals that Pitx2 is essential for normal cardiac cell composition, differentiation dynamics, and left-right asymmetry during murine heart development.
Hill et al. (2019) studied Cardiac development. Pitx2 null mutation vs. Control embryos was evaluated on Cardiac cell composition and differentiation dynamics. Pitx2 null murine embryos exhibited dramatically altered cardiac cell composition and disrupted differentiation dynamics of second heart field-derived progenitor cells.
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