Neutrophils are a type of white blood cell that are essential for the immune system's defense against infection. They are one of the first responders to invading microorganisms like bacteria and viruses.
Here's a breakdown of their key functions:
- Phagocytosis: Neutrophils engulf and destroy invading microorganisms by ingesting them and releasing enzymes that kill them.
- Inflammation: Neutrophils release chemicals that attract other immune cells to the site of infection, amplifying the immune response.
- Tissue Repair: After clearing the infection, neutrophils help with the healing process by promoting tissue regeneration.
Neutrophil levels can increase naturally in response to infection or inflammation. They can also be affected by medications, such as antibiotics and drugs that stimulate white blood cell production.