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Neural and orofacial defects in Folp1 knockout mice [corrected]
Louisa S Tang1, Richard H Finnell
1Center for Environmental and Genetic Medicine, Institute of Biosciences and Technology, Texas A&M University System Health Science Center, Houston, Texas 77030-3303, USA.
Summary
Folic acid-binding protein 1 (Folbp1) gene deficiency causes neural tube and craniofacial defects in mice. This study reveals Folbp1
Area of Science:
- Developmental biology
- Genetics
- Neuroscience
Background:
- Folic acid is vital for nervous system development.
- Folbp1 gene deficiency in mice leads to neural and craniofacial abnormalities.
- Investigating Folbp1 interactions with key developmental genes is crucial.
Purpose of the Study:
- To examine the expression patterns of differentiation markers (Pax-3, En-2, Hox-a1, Shh, Bmp-4, Wnt-1, Pax-1) in Folbp1-deficient mice.
- To understand the regulatory interactions between Folbp1 and genes involved in neural and craniofacial development.
Main Methods:
- Folbp1-deficient mice were rescued with folinic acid to allow in utero survival.
- In situ hybridization was used to analyze gene marker expression patterns.
Main Results:
- Folbp1 deficiency caused downregulation of Pax-3 and En-2, and upregulation of Shh in midbrain defects.
- Craniofacial abnormalities, including cleft lip and palate, were observed.
- Differential expression of Pax-3, Pax-1, Shh, and Bmp-4 suggests complex regulatory roles in facial development.
Conclusions:
- Folbp1 gene impairment disrupts critical signaling molecules.
- Mis-expression of these molecules, potentially involving Shh, contributes to neural tube closure failure and craniofacial defects.