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Polycomblike-2-deficient mice exhibit normal left-right asymmetry.
Shusheng Wang1, Fenglei He, Wei Xiong
1Division of Developmental Biology, Department of Cell and Molecular Biology, Tulane University, New Orleans, LA, USA.
Summary
Mouse Pcl2 is not essential for left-right axis development. Pcl2 mutant mice showed normal asymmetry but had skeletal defects, indicating a role in axial skeleton formation.
Area of Science:
- Developmental Biology
- Epigenetics
- Genetics
Background:
- Polycomb group (PcG) proteins maintain gene repression during development.
- Polycomblike (Pcl) proteins, including Pcl2, are PcG gene members with unknown functions in mice.
- Chick Pcl2 is crucial for left-right asymmetry by regulating Shh expression.
Purpose of the Study:
- To investigate the in vivo function of mouse Pcl2.
- To determine the role of Pcl2 in left-right axis development and axial skeleton formation.
Main Methods:
- Generation of Pcl2 mutant mice.
- Phenotypic analysis of Pcl2 mutant mice, focusing on left-right asymmetry and skeletal development.
Main Results:
- Pcl2 mutant mice developed normal left-right asymmetry.
- Pcl2 mutant mice exhibited posterior transformation of axial skeletons and other defects with low penetrance.
Conclusions:
- Mouse Pcl2 is dispensable for normal left-right axis development.
- Pcl2 plays a role in axial skeleton development, though its function in this process requires further investigation.
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