Faculty Articles
Analysis of Genomic Instability using Multiple Assays in a Patient with Rothmund-Thomson Syndrome
Publication Title
Clinical genetics
ISSN
0009-9163
Publication Date
9-1-2000
Abstract
We report on a patient with Rothmund–Thomson syndrome (RTS) whose cytogenetic evaluation showed a normal karyotype with no evidence of trisomy mosaicism or chromosomal rearrangements. Cultured lymphocytes from the patient, her mother, and a control exposed to mitomycin C and diepoxybutane did not show increased sensitivity to the dialkylating agents. Unlike some previous reports, we found no evidence of a deficiency in nucleotide excision repair, as measured with the functional unscheduled DNA synthesis assay. Glycophorin A analysis of red blood cells for somatic mutation revealed suspiciously high frequencies of both allele loss and loss-and-duplication variants in the blood of the patient, a pattern consistent with observations in other RecQ-related human diseases, and evidence for clonal expansion of a mutant clone in the mother. Discrepant results in the literature may reflect true heterogeneity in the disease or the fact that a consistent set of tests has not been applied to RTS patients.
DOI
10.1034/j.1399-0004.2000.580308.x
Volume
58
Issue
3
First Page
209
Last Page
15
Disciplines
Medical Specialties | Medicine and Health Sciences | Osteopathic Medicine and Osteopathy
NSUWorks Citation
Grant, Stephen G.; Wenger, Sharon L.; Latimer, Jean Johanna; Thull, Darcy; and Burke, L W., "Analysis of Genomic Instability using Multiple Assays in a Patient with Rothmund-Thomson Syndrome" (2000). Faculty Articles. 606.
https://nsuworks.nova.edu/hpd_com_faculty_articles/606
