Anti-LKM antibody

Anti-LKM antibody is a type of autoantibody that is primarily associated with autoimmune hepatitis and lupus. It is one of the serological markers used in the diagnosis of these conditions.

Overview

Anti-LKM antibodies are directed against liver and kidney microsomes. They are found in a subset of patients with autoimmune hepatitis, particularly those with a form of the disease known as type 2 autoimmune hepatitis. These antibodies are also found in a small percentage of patients with lupus.

Clinical significance

The presence of Anti-LKM antibodies in the blood is a significant finding in the diagnosis of autoimmune hepatitis. They are not found in healthy individuals and their presence indicates an autoimmune process is occurring.

In addition to their role in diagnosis, Anti-LKM antibodies may also have a role in the pathogenesis of autoimmune hepatitis. It is thought that these antibodies may contribute to the liver damage seen in this condition by attacking the liver cells.

Diagnosis

The detection of Anti-LKM antibodies is typically done through a blood test. This test is often part of a larger panel of tests used to diagnose autoimmune hepatitis.

Treatment

The treatment for conditions associated with Anti-LKM antibodies typically involves managing the underlying autoimmune condition. This often involves the use of medications to suppress the immune system and reduce inflammation.

See also

• Autoimmune hepatitis
• Lupus
• Autoantibody
• Serological marker