The Clinical Spectrum of Mosaic Genetic Disease.

Genes (Basel)

Division of Medical Genetics and Genomic Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA.

Published: September 2024

AI Article Synopsis

  • Genetic mosaicism refers to the existence of multiple cell types with different genetic makeups originating from a single fertilized egg, impacting various genetic diseases.
  • It can lead to a range of outcomes, from severe disorders that are typically fatal in non-mosaic forms to conditions with minor effects, which may still pose risks for passing on harmful genotypes.
  • The article will explore the different manifestations of mosaic genetic disease and review current methods of detection and its prevalence in the population.

Article Abstract

Genetic mosaicism is defined as the presence of two or more cell lineages with different genotypes arising from a single zygote. Mosaicism has been implicated in hundreds of genetic diseases with diverse genetic etiologies affecting every organ system. Mosaic genetic disease (MDG) is a spectrum that, on the extreme ends, enables survival from genetic severe disorders that would be lethal in a non-mosaic form. On the milder end of the spectrum, mosaicism can result in little if any phenotypic effects but increases the risk of transmitting a pathogenic genotype. In the middle of the spectrum, mosaicism has been implicated in reducing the phenotypic severity of genetic disease. In this review will describe the spectrum of mosaic genetic disease whilst discussing the status of the detection and prevalence of mosaic genetic disease.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11507335PMC
http://dx.doi.org/10.3390/genes15101240DOI Listing

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