Abstract
22q11.2 deletion syndrome (22q11.2DS) is the most common chromosomal microdeletion disorder. Its phenotype is highly variable with incomplete penetrance. 22q11.2DS is a rare disease, and the research progress is relatively slow, which has restricted its treatment and intervention. In recent years, much progress has been made in the pathogenic mechanism and genome-wide association study of 22q11.2DS. In this review, the pathogenesis of 22q11.2DS was summarized. Thereafter, the molecular and pathological mechanisms of TBX1 and DGCR8 genes were clarified. Finally, factors affecting the penetrance of cardiac and immune system phenotypes were reviewed. This review may enhance the understanding of 22q11.2DS and has important clinical implications on the prenatal diagnosis, genetic counseling, treatment and intervention of this disease.
Published Version
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