Combination of Genetics and Nanotechnology for Down Syndrome Modification: A Potential Hypothesis and Review of the Literature

  • Alireza TAFAZOLI 1. Department of Analysis and Bioanalysis of Medicine, Faculty of Pharmacy with the Division of Laboratory Medicine, Medical University of Bialystok, Bialystok, Poland 2. Department of Endocrinology, Diabetology and Internal Medicine, Clinical Research Center, Medical University of Bialystok, Bialystok, Poland
  • Farkhondeh BEHJATI Genetics Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
  • Dariush D. FARHUD 1. School of Public Health, Tehran University of Medical Sciences, Tehran, Iran 2. Department of Basic Sciences, Iranian Academy of Medical Sciences, Tehran, Iran
  • Mohammad Reza ABBASZADEGAN Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
Keywords: Down syndrome; CRISPR/Cas9; Designed DNA construct; Poly D L-lactide-co-glycolide (PLGA); Nano-carrier; Chromosome 21 inactivation


Down syndrome (DS) is one of the most prevalent genetic disorders in humans. The use of new approaches in genetic engineering and nanotechnology methods in combination with natural cellular phenomenon can modify the disease in affected people. We consider two CRISPR/Cas9 systems to cut a specific region from short arm of the chromosome 21 (Chr21) and replace it with a novel designed DNA construct, containing the essential genes in chromatin remodeling for inactivating of an extra Chr21. This requires mimicking of the natural cellular pattern for inactivation of the extra X chromosome in females. By means of controlled dosage of an appropriate Nano-carrier (a surface engineered Poly D, L-lactide-co-glycolide (PLGA) for integrating the relevant construct in Trisomy21 brain cell culture media and then in DS mouse model, we would be able to evaluate the modification and the reduction of the active extra Chr21 and in turn reduce substantial adverse effects of the disease, like intellectual disabilities. The hypothesis and study seek new insights in Down syndrome modification.    


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How to Cite
TAFAZOLI A, BEHJATI F, FARHUD DD, ABBASZADEGAN MR. Combination of Genetics and Nanotechnology for Down Syndrome Modification: A Potential Hypothesis and Review of the Literature. Iran J Public Health. 48(3):371-8.
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