Parenchymal expression of CD40 exacerbates adenovirus‐induced hepatitis in mice
Jiabin Yan, Zuliang Jie, Lifei Hou, Joao L. Wanderley, Lynn Soong, Shalini Gupta, Suimin Qiu, Tehsheng Chan, Jiaren Sun – 28 February 2011 – The healthy adult human liver expresses low levels of major histocompatibility complex class II (MHC II) and undetectable levels of immune costimulatory molecules. However, high levels of MHC II, CD40, and B7 family molecules are expressed in the activated Kupffer cells and hepatocytes of patients with viral hepatitis. The precise role of these molecules in viral clearance and immune‐mediated liver injury is not well understood.