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Published on: August 15, 2019
The Molecular Genetics of Marfan Syndrome
Qiu Du1, Dingding Zhang1,2, Yue Zhuang3
1Marfan Research Group, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, Sichuan, China.
Abstract:
Marfan syndrome (MFS) is a complex connective tissue disease that is primarily characterized by cardiovascular, ocular and skeletal systems disorders. Despite its rarity, MFS severely impacts the quality of life of the patients. It has been shown that molecular genetic factors serve critical roles in the pathogenesis of MFS. FBN1 is associated with MFS and the other genes such as FBN2, transforming growth factor beta (TGF-β) receptors (TGFBR1 and TGFBR2), latent TGF-β-binding protein 2 (LTBP2) and SKI, amongst others also have their associated syndromes, however high overlap may exist between these syndromes and MFS. Abnormalities in the TGF-β signaling pathway also contribute to the development of aneurysms in patients with MFS, although the detailed molecular mechanism remains unclear. Mutant FBN1 protein may cause unstableness in elastic structures, thereby perturbing the TGF-β signaling pathway, which regulates several processes in cells. Additionally, DNA methylation of FBN1 and histone acetylation in an MFS mouse model demonstrated that epigenetic factors play a regulatory role in MFS. The purpose of the present review is to provide an up-to-date understanding of MFS-related genes and relevant assessment technologies, with the aim of laying a foundation for the early diagnosis, consultation and treatment of MFS.
Insights
Marfan syndrome (MFS) involves genetic and epigenetic factors affecting connective tissues. Understanding MFS genes and assessment technologies aids early diagnosis and treatment.
Area of Science:
- Genetics and Molecular Biology
- Connective Tissue Diseases
- Medical Research
Background:
- Marfan syndrome (MFS) is a rare connective tissue disorder impacting cardiovascular, ocular, and skeletal systems.
- Genetic factors, including FBN1 mutations and alterations in TGF-β signaling, are central to MFS pathogenesis.
- Epigenetic modifications, such as DNA methylation and histone acetylation, also play a regulatory role in MFS.
Purpose of the Study:
- To provide an updated review of Marfan syndrome-related genes.
- To discuss relevant assessment technologies for MFS.
- To establish a foundation for early diagnosis, consultation, and treatment of MFS.
Main Methods:
- Literature review of genetic and molecular mechanisms in Marfan syndrome.
- Analysis of the role of FBN1 and TGF-β signaling pathway.
- Examination of epigenetic factors in MFS pathogenesis.
- Review of current diagnostic and assessment technologies.
Main Results:
- FBN1 mutations are a primary cause of MFS, with other genes like TGFBR1/2 and LTBP2 also implicated.
- Aberrant TGF-β signaling, potentially due to FBN1 mutations, contributes to aneurysm development in MFS.
- Epigenetic factors, including FBN1 DNA methylation and histone acetylation, are involved in MFS regulation.
- Overlapping features exist between MFS and related genetic syndromes.
Conclusions:
- A comprehensive understanding of MFS-related genes and epigenetic factors is crucial.
- Advanced assessment technologies are vital for early and accurate MFS diagnosis.
- Further research into molecular mechanisms will improve MFS management and patient outcomes.
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