In addition, investigating the role of Cdk8/Cdk19 inhibition on other autoimmune diseases such as graft-vs.-host disease, SLE, and rheumatoid arthritis (RA) will further confirm the function of Cdk8/Cdk19 in adaptive immunity regulation and diversify its application in the field of autoimmunity. This evidence concerns the gene CDK8 and graft versus host disease.