Immune cells are alive

Immune cells, including various types of white blood cells such as granulocytes, T cells, and others, are indeed alive. They are living components of the immune system that perform vital functions such as patrolling for pathogens, responding to infections, and coordinating immune responses. Multiple sources confirm that these cells are biologically active and metabolically functional entities.

For example, the National Institute of Allergy and Infectious Diseases (NIAID) describes different types of immune cells and their roles in host defense.niaid.nih.govniaid.nih.govImmune Cells Similarly, UR Medicine explains that white blood cells (leukocytes) protect the body against illness and disease, implying their living status.urmc.rochester.eduurmc.rochester.eduWhat Are White Blood Cells? Additional sources like Scientific American and Gizmodo emphasize the dynamic nature of immune cells in maintaining health and fighting infections.+2 more

The ESA article discusses research on keeping immune cells alive in space, further reinforcing that these cells are living entities requiring conditions to sustain their viability.esa.intesa.intKeeping immune cells alive and kicking While some sources like Phys.org and CELLS alive! Provide general scientific context or educational resources about cells, they support the understanding that immune cells are living biological units.phys.orgphys.orgNews and Articles on Science and Technology+1 more