Heidelberg [Germany], August 19 (ANI): The cell of origin of mixed liver/biliary duct carcinomas, a rare type of liver cancer, has been found in mice by researchers from the German Cancer Research Center (Deutsches Krebsforschungszentrum, DKFZ) and the Hebrew University in Jerusalem. Carcinogenesis has been linked to the pro-inflammatory immunological messenger interleukin 6 (IL-6). In mice, blocking IL-6 lowered the number and size of tumours.