Peripheral blood mononuclear cells (PBMCs)

Peripheral blood mononuclear cells (PBMCs) are a diverse group of immune cells found in the bloodstream, including lymphocytes (such as T cells, B cells, and natural killer cells) and monocytes. They play a vital role in immune defense by recognizing and responding to pathogens like viruses and bacteria. When blood is drawn, PBMCs can be separated out for study or therapy, helping researchers understand immune responses or develop treatments. Essentially, PBMCs are key components of the body's immune system circulating in the blood, ready to identify and fight infections or diseases.