Gene Responsible for Autoimmune Polyglandular Syndrome Type 2
Autoimmune Polyglandular Syndrome Type 2 (APS-2) is an inherited disorder that affects the endocrine system, which produces hormones. It is caused by a mutation in the AIRE gene, which is responsible for encoding a protein that helps regulate the body's immune system. The mutation leads to a decrease in the production of certain hormones, including cortisol, aldosterone, and testosterone.
People with the AIRE gene mutation have a weakened immune system, making them more susceptible to viral and bacterial infections. They are also at increased risk for developing autoimmune disorders, such as type 1 diabetes, Addison's disease, vitiligo, and celiac disease.
AIRE Gene
The AIRE gene is located on chromosome 21 and is responsible for producing a protein that helps regulate the body's immune system. The protein, known as autoimmune regulator, helps to prevent the body from attacking its own cells and tissues.
When the AIRE gene is mutated, it leads to a decrease in the production of the autoimmune regulator, resulting in a weakened immune system. This weakened immune system increases the risk of autoimmune disorders and infections.
Diagnosis and Treatment
APS-2 is typically diagnosed through a combination of genetic testing and clinical evaluation. Blood tests are used to measure levels of hormones, such as cortisol, aldosterone, and testosterone. Genetic testing can confirm the presence of the AIRE gene mutation.
Treatment for APS-2 usually involves hormone replacement therapy, which is used to replace the hormones that are lacking due to the mutation. It can also involve medications to manage infections and autoimmune disorders. In some cases, surgery may be necessary to remove affected organs or tissues.