Clonal proliferation

Definition

Clonal proliferation is the process by which specific lymphocytes rapidly multiply after recognizing a particular antigen. This ensures that there are enough immune cells to effectively respond to and eliminate the pathogen.

5 Must Know Facts For Your Next Test

1. Clonal proliferation occurs in both T lymphocytes and B lymphocytes after antigen recognition.
2. This process is critical for creating a robust immune response through the expansion of antigen-specific cells.
3. During clonal proliferation, some cells differentiate into effector cells while others become memory cells for long-term immunity.
4. Clonal proliferation is initiated by signals from antigen-presenting cells and cytokines.
5. Errors in clonal proliferation can lead to immune disorders, including autoimmune diseases and cancers.

Review Questions

Related terms

Antigen-Presenting Cells (APCs):

Cells that display antigens on their surface to T lymphocytes, initiating an immune response.

Cytokines:

Signaling proteins released by cells that have an effect on the interactions and communications between cells.

Memory Cells: Long-lived immune cells that remember past infections and provide a faster response upon re-exposure to the same pathogen.