B Cell-mediated Genetic Mechanisms in Lupus
Systemic lupus erythematosus (SLE) is an illness where the body’s immune system attacks healthy tissues, often causing harm to the kidneys, joints, and other organs. SLE can begin in childhood or the teenage years, particularly in girls, and it remains a serious health challenge worldwide. Scientists know that certain genetic changes (called “risk variants”) can increase a person’s chance of developing SLE, but exactly how these changes lead to disease is not well understood.
In this study, we are focusing on a gene that seems to play a major role in how specific immune cells called B cells grow and become active. We have identified a common DNA change near this gene that raises the risk of getting SLE. Our research suggests that this variant can change how much the gene is turned on, which could affect the formation of a special type of B cells.
These B cells tend to show up in higher frequency in people with autoimmune diseases, including SLE. We will study the effects of this risk variant in children with SLE and healthy individuals, and we will find out how this risk variant can turn on or off the gene.
By uncovering how genetic risk variants affect B cells in children with SLE, this research may point to new ways to treat the disease. If we can better understand what triggers harmful B cell activity, we could develop strategies to protect children from the long-term damage that SLE can cause, ultimately improving their quality of life and reducing complications.