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Non-Invasive Prenatal Testing Using Cell Free DNA in Maternal Plasma: Recent Developments and Future Prospects
1Department of Genetics and Developmental Biology, Human Genetics Laboratory, University of Connecticut Health Center, 263 Farmington Avenue, Farmington, CT 06030-3808, USA. benn@nso1.uchc.edu.
Journal of Clinical Medicine
|August 4, 2015
Summary
Non-invasive prenatal testing (NIPT) analyzes fetal DNA in maternal blood for genetic disorders. This advanced screening improves prenatal care and patient outcomes for conditions like trisomy and monogenic disorders.
Area of Science:
- Genetics
- Molecular Biology
- Prenatal Diagnostics
Background:
- Non-invasive prenatal testing (NIPT) utilizes cell-free fetal DNA (cffDNA) from maternal plasma.
- Advances in molecular genetics enable comprehensive prenatal genetic analysis.
- NIPT offers a less invasive alternative to traditional prenatal screening methods.
Purpose of the Study:
- To review the capabilities and applications of NIPT in identifying various fetal genetic abnormalities.
- To highlight the potential of NIPT for screening monogenic disorders and chromosomal aneuploidies.
- To discuss the future prospects and public health benefits of NIPT.
Main Methods:
- Analysis of cell-free fetal DNA (cffDNA) in maternal plasma.
- Application of molecular genetic technologies for mutation detection.
- Utilizing single nucleotide polymorphism (SNP) analysis for specific genetic conditions.
Main Results:
- NIPT effectively screens for common trisomies (21, 18, 13) and is expanding to sex chromosome aneuploidies.
- Methods are being developed for identifying monogenic disorders, including autosomal recessive conditions and microdeletion syndromes like alpha-globin gene deletion.
- NIPT can identify diandric triploidy using SNP-based analysis.
Conclusions:
- NIPT represents a significant advancement in prenatal care, offering substantial patient and public health benefits.
- The scope of NIPT is expanding to include a wider range of genetic disorders.
- Continued development of NIPT promises further improvements in prenatal screening and diagnosis.
