The role of GLIS3 in thyroid disease as part of a multisystem disorder

Area of Science:

• Endocrinology
• Genetics
• Developmental Biology

Background:

• Congenital hypothyroidism (CH) is a common hereditary endocrine disorder.
• Specific gene mutations, including NKX2-1, PAX8, and FOXE, are linked to thyroid maldevelopment and multisystem syndromes.
• The association between permanent neonatal diabetes and CH led to the identification of the GLIS3 gene mutation.

Purpose of the Study:

• To review the genetic basis and clinical manifestations of GLIS3 mutations.
• To highlight the multisystem involvement associated with GLIS3 mutations.
• To discuss the variable thyroid findings in patients with GLIS3 mutations.

Main Methods:

• Literature review of studies on congenital hypothyroidism and GLIS3 mutations.
• Analysis of reported clinical phenotypes associated with GLIS3.
• Examination of thyroid-related findings in affected individuals.

Main Results:

• GLIS3 mutations are associated with a syndrome including CH, neonatal diabetes, renal cystic dysplasia, liver fibrosis, and osteopenia.
• Thyroid abnormalities in GLIS3 patients range from aplasia to TSH resistance.
• The GLIS3 gene encodes a nuclear protein involved in transcriptional regulation during embryogenesis.

Conclusions:

• GLIS3 mutations cause a complex multisystem disorder with significant endocrine and developmental impact.
• The variable presentation of thyroid abnormalities in GLIS3-associated disorders requires further investigation.
• Understanding the role of GLIS3 is crucial for diagnosing and managing this rare genetic condition.