Preliminary communication: prenatal detection of the Fanconi Anemia gene by cytogenetic methods.
We have studied the pattern of chromosome instability in cultured fibroblasts and fetal membrane cells from a fetus aborted by an individual with a history of a previous child affected with Fanconi anemia ( FA). These cells exhibited a low level of spontaneous chromosome instability. Upon treatment with diepoxybutane (DEB), chromosome breakage increased to a level comparable to that reported earlier in DEB-treated FA heterozygous cells. Cultured cells derived from chromosomally normal fetuses which served as controls did not show DEB-induced chromosome breakage. This observation suggests that the fetus studied is heterozygous for the FA gene. The ability to distinguish readily between the three genotypes (homozygous FA, heterozygous FA, and normal) in an in vitro stress system that measures the response of the cells to a clastogenic agent makes available a test for the prenatal and postnatal detection of the FA gene.[1]References
- Preliminary communication: prenatal detection of the Fanconi Anemia gene by cytogenetic methods. Auerbach, A.D., Warburton, D., Bloom, A.D., Chaganti, R.S. Am. J. Hum. Genet. (1979) [Pubmed]
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