Leukocytes

Definition

Leukocytes, also known as white blood cells, are cells of the immune system that protect the body against both infectious disease and foreign invaders. They play a critical role in the body's response to cancer and chemotherapeutic drugs.

5 Must Know Facts For Your Next Test

1. Leukocytes are divided into five major types: neutrophils, lymphocytes, monocytes, eosinophils, and basophils.
2. Chemotherapy can lead to leukopenia, a decrease in leukocyte count, increasing the risk of infection.
3. Neutrophils are often the most affected leukocyte type by chemotherapy due to their rapid turnover rate.
4. Monitoring leukocyte levels is crucial during cancer treatment to prevent and manage potential infections.
5. Growth factors such as granulocyte colony-stimulating factor (G-CSF) may be administered to stimulate leukocyte production during chemotherapy.

Review Questions

• What are the five major types of leukocytes?
• How does chemotherapy affect leukocyte levels in patients?
• Why is monitoring leukocyte levels important during cancer treatment?

Related terms

Neutropenia: A condition characterized by an abnormally low count of neutrophils, a type of white blood cell.

Granulocyte Colony-Stimulating Factor (G-CSF): A growth factor used to stimulate the production of neutrophils in bone marrow.

Immunosuppression: The reduction in the efficacy of the immune system's ability to fight infections and diseases.