A study of the complex genetics of left-right (L-R) axis malformations has been undertaken with an emphasis on those genes that are associated with common phenotypes of L-R disorders, including situs inversus, heterotaxia and organ isomerism. L-R defects can result from either environmental or genetic causes and it is the aim of these investigations to determine the genes responsible for both normal and abnormal L-R axis formation through the study of patients with these disorders. Mutations in several such genes have been shown to be responsible for several familial and sporadic cases of heterotaxia: ZIC3, LEFTY A, ACVR2B, and CFC1. We have identified several additional genes important for L-R development including FAST1 and GDF1.

Agency
National Institute of Health (NIH)
Institute
National Human Genome Research Institute (NHGRI)
Type
Intramural Research (Z01)
Project #
1Z01HG000174-04
Application #
6830465
Study Section
Molecular Genetics B Study Section (MGB)
Project Start
Project End
Budget Start
Budget End
Support Year
4
Fiscal Year
2003
Total Cost
Indirect Cost
Name
Human Genome Research
Department
Type
DUNS #
City
State
Country
United States
Zip Code
Edison, Robin; Muenke, Maximilian (2003) The interplay of genetic and environmental factors in craniofacial morphogenesis: holoprosencephaly and the role of cholesterol. Congenit Anom (Kyoto) 43:1-21
Roessler, Erich; Muenke, Maximilian (2003) How a Hedgehog might see holoprosencephaly. Hum Mol Genet 12 Spec No 1:R15-25
Goldmuntz, Elizabeth; Bamford, Richard; Karkera, Jayaprakash D et al. (2002) CFC1 mutations in patients with transposition of the great arteries and double-outlet right ventricle. Am J Hum Genet 70:776-80