CHAI disease is a rare genetic disorder of the immune system that illustrates the role of CTLA-4incell signaling. CHAI stands for “Autoimmune lymphoproliferative syndrome due to CTLA4 haplo-insufficiency.”[1][2] The disease is characterized by variable combination of enteropathy, hypogammaglobulinemia, recurrent respiratory infections, granulomatous lymphocytic interstitial lung disease, lymphocytic infiltration of non-lymphoid organs (intestine, lung, brain, bone marrow, kidney), autoimmune thrombocytopeniaorneutropenia, autoimmune hemolytic anemia and lymphadenopathy.[1][3] It is closely linked to LATIAE disease.[1] Investigators in the laboratory of Dr. Michael Lenardo, National Institute of Allergy and Infectious Diseases at the National Institutes of Health first described this condition in 2018.[1][4]
 | This genetic disorder article is a stub. You can help Wikipedia by expanding it. |
