期刊
SEMINARS IN LIVER DISEASE
卷 34, 期 4, 页码 376-388出版社
THIEME MEDICAL PUBL INC
DOI: 10.1055/s-0034-1394138
关键词
hepatocellular carcinoma; macrophages; myeloid suppressor cells; tumor environment; immune surveillance
Immune control of hepatocellular carcinoma (HCC) is executed by effector immune cells, which efficiently eliminate malignant transformed cells. However, progression of HC clearly documents failure of tumor immune control, which led to the concept of immune subversion by the tumor environment. Particularly tumor-associated stromal cells cooperate within an inflammatory network, which is responsible for immune privilege. The stromal cell composition matures during tumor growth and is derived from surrounding noncancerous tissue or from circulating cells recruited to the tumor site. Therefore, immunosuppressive stromal cells represent heterogeneous cell lineages, including myeloid cells, lymphocytes, endothelial cells, and fibroblasts, which interact by direct cell contact, secretion of soluble factors, or production of extracellular matrix. As the stromal cells determine tumor immune control and clinical outcome of HCC, they represent a promising target for cancer immunotherapy.
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