A long-lived ‘killer’ role emerges for CD4 cells

Key Points

• Long-lived CD4 cells may effectively kill target cells, enhancing overall immune response.
• Evidence shows that CD4 cells produce crucial cytokines in different immune contexts, impacting their function.
• Analysis highlights the role of CD4 cells in the tumor microenvironment, potentially aiding in tumor rejection.
• Understanding this killer functionality of CD4 cells may lead to novel cancer therapies, expanding treatment options.