Researchers at UT Southwestern Medical Center have discovered how a hormone interacts with a receptor on the surface of immune cells to shield cancer cells from the body's natural defenses. The findings, published in Nature Immunology, could lead to new immunotherapy approaches for treating cancer as well as potential treatments for inflammatory disorders and neurologic diseases.
The research centers on myeloid cells, a type of immune cell often found at tumor sites. These cells initially attempt to fight cancer but quickly transition to supporting tumor growth. The study suggests that a hormone stimulates receptors on these myeloid cells,ultimately suppressing the immune system. Specifically, the inhibitory receptor LILRB4 plays a crucial role in this process.