BMJ 1995;311:536-540 (26 August)

Papers

Optimal polymerase chain reaction amplification for preimplantation diagnosis in cystic fibrosis ((Delta)F508)

Ke-Hui Cui, scientist in charge of preimplantation diagnosis,a Eric A Haan, director of department,b Ling-Jia Wang, scientist,a Colin D Matthews, professor a

a Department of Obstetrics and Gynaecology, University of Adelaide, Queen Elizabeth Hospital, Woodville, Adelaide, SA5011, Australia, b Department of Medical Genetics, Women's and Children's Hospital, North Adelaide, SA 5006

Correspondence to: Dr Cui.

Abstract

Objective: To evaluate direct polymerase chain reaction amplification of mutation on single embryo cells for the routine preimplantation diagnosis of cystic fibrosis.
Design: Direct polymerase chain reaction amplification of mutation was performed to identify the cystic fibrosis {delta}F508 mutation in human blood DNA, single lymphocytes, embryos, and embryo cells obtained by biopsy. Preimplantation diagnosis was performed for a couple who were heterozygous carriers of the {delta}F508 mutation.
Setting: Laboratory for preimplantation diagnosis in a reproductive medicine unit.
Main outcome measure: Correct diagnosis of homozygous normal, heterozygous, and homozygous abnormal DNA of the cystic fibrosis {delta}F508 mutation.
Results: 45 blood samples (18 homozygous normal, 17 heterozygous, and 10 homozygous abnormal) and 204 single lymphocytes from known sources showed 100% amplification and were diagnosed correctly. 17 human embryos and 52 normal nucleated embryo cells obtained by single cell embryo biopsy also showed 100% amplification. After a miscarriage of the initial pregnancy (diagnosed at preimplantation to be homozygous normal) in the heterozygous carrier couple, fetal tissue was confirmed to be homozygous normal.
Conclusion: Direct polymerase chain reaction amplification of mutation is a simple, fast, reliable test for the common cystic fibrosis mutation ({delta}F508) in blood DNA and single cells and should be applicable to routine programmes of general screening, maternal blood examination, and preimplantation diagnosis.

Key messages

  • Key messages

  • Misdiagnoses in sex linked diseases and cystic fibrosis are mainly due to limitations of methods

  • A basic experimental design with 100% correct results when testing blood DNA, single lymphocytes, embryos, and single embryo cells combined with good clinical practice and success in an animal model were the key factors in good outcome of this study

  • Applying direct polymerase chain reaction amplification of mutation in general screening, preimplantation, and prenatal diagnosis should lead to a substantial reduction in cystic fibrosis in the future


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This article has been cited by other articles:

  • Phillipson, G.T.M., Petrucco, O.M., Matthews, C.D. (2000). Congenital bilateral absence of the vas deferens, cystic fibrosis mutation analysis and intracytoplasmic sperm injection. Hum Reprod 15: 431-435 [Abstract] [Full text]  
  • Hussey, N. D., Donggui, H., Froiland, D. A.H., Hussey, D. J., Haan, E. A., Matthews, C. D., Craig, J. E. (1999). Analysis of five Duchenne muscular dystrophy exons and gender determination using conventional duplex polymerase chain reaction on single cells. Mol Hum Reprod 5: 1089-1094 [Abstract] [Full text]  
  • Bogardus, S. T. Jr, Concato, J., Feinstein, A. R. (1999). Clinical Epidemiological Quality in Molecular Genetic Research: The Need for Methodological Standards. JAMA 281: 1919-1926 [Abstract] [Full text]  
  • Raeburn, J A (1995). Commentary: Preimplantation diagnosis raises a philosophical dilemma. BMJ 311: 540-540 [Full text]  



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