[Research progress of genetic research on POIKTMP syndrome]

Area of Science:

• Genetics
• Molecular Biology
• Rare Diseases

Background:

• Hereditary fibrosing poikiloderma with tendon contractures, myopathy, and pulmonary fibrosis (POIKTMP) is a rare autosomal dominant disorder.
• POIKTMP syndrome can affect multiple organ systems, causing complications like pancreatic insufficiency, liver dysfunction, lymphedema, and developmental delay.

Purpose of the Study:

• To provide a comprehensive review of the genetic basis of POIKTMP syndrome.
• To explore the correlation between the FAM111B gene and the various phenotypes observed in POIKTMP syndrome.
• To offer insights for basic research and clinical diagnosis of this rare disease.

Main Methods:

• Literature review focusing on genetic studies of POIKTMP syndrome.
• Analysis of the role of the FAM111B gene and its protein product in cellular processes.
• Correlation of genetic findings with clinical manifestations and phenotypes.

Main Results:

• The FAM111B gene has been identified as the pathogenic gene responsible for POIKTMP syndrome.
• The FAM111B protein product is crucial for DNA repair, replication, cell cycle, apoptosis, nuclear transport, and telomere maintenance.
• The review consolidates current knowledge on the genetic underpinnings and phenotypic spectrum of POIKTMP.

Conclusions:

• The genetic basis of POIKTMP syndrome is primarily associated with mutations in the FAM111B gene.
• Understanding the function of FAM111B provides a molecular basis for the diverse clinical features of POIKTMP.
• This review serves as a valuable resource for advancing research and improving diagnostic approaches for POIKTMP syndrome.