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Published on: April 20, 2019
[Advance in research on MIRAGE syndrome]
1Department of Children's Rehabilitation, The Affiliated Hospital of Jining Medical University, Jining, Shandong 272029, China. xxxz58961@163.com.
Abstract:
MIRAGE syndrome is a rare autosomal dominant disorder caused by gain-of-function mutations of the SAMD9 gene. Its typical clinical manifestations include myelodysplasia, intrauterine growth restriction, adrenal hypoplasia, genital abnormalities, and enteropathy. The gain-of-function toxicity of the SAMD9 gene and subsequent somatic revertant mutations have been identified as the core molecular mechanisms underlying the multi-system phenotypes and clonal hematopoietic evolution in this disease. The specific genotypic background and tissue-specific distribution of somatic revertant mutations collectively constitute the genetic basis for its significant clinical heterogeneity. In recent years, important breakthroughs have been made in research on the pathogenesis, phenotypic expansion, molecular diagnosis, and targeted therapy of the MIRAGE syndrome. This article has systematically reviewed the latest progress made in the research on the etiology, clinical manifestations, diagnosis, and treatment of this disease.
Insights
MIRAGE syndrome, a rare genetic disorder, stems from SAMD9 gene mutations. Research is advancing understanding of its causes, symptoms, and potential targeted therapies.
Area of Science:
- Genetics
- Molecular Biology
- Pediatrics
Background:
- MIRAGE syndrome is a rare autosomal dominant disorder.
- It is caused by gain-of-function mutations in the SAMD9 gene.
- Key features include myelodysplasia, intrauterine growth restriction, adrenal hypoplasia, genital abnormalities, and enteropathy.
Purpose of the Study:
- To systematically review recent advancements in MIRAGE syndrome research.
- To cover etiology, clinical manifestations, diagnosis, and treatment.
- To highlight breakthroughs in pathogenesis, phenotypic expansion, molecular diagnosis, and targeted therapy.
Main Methods:
- Literature review of recent research on MIRAGE syndrome.
- Systematic analysis of studies on SAMD9 gene mutations and their effects.
- Compilation of data on clinical heterogeneity and molecular mechanisms.
Main Results:
- Gain-of-function toxicity of SAMD9 and somatic revertant mutations are core mechanisms.
- Clinical heterogeneity is influenced by genotypic background and somatic mutation distribution.
- Significant progress has been made in understanding pathogenesis, diagnosis, and therapy.
Conclusions:
- Recent research has significantly advanced the understanding of MIRAGE syndrome.
- Targeted therapies are emerging based on a deeper understanding of molecular mechanisms.
- Continued research is crucial for improving diagnosis and treatment outcomes.
