The body's intricate system of checks and balances ensures normal cell function through several mechanisms: - Cell Cycle Control: The cell cycle is regulated by checkpoints that ensure cells only divide when appropriate. Proteins like cyclins and cyclin-dependent kinases (CDKs) play a crucial role in this regulation. - DNA Repair: Normal cells have robust DNA repair mechanisms to correct any damage that occurs during cell division or due to environmental factors. - Immune Surveillance: The immune system constantly monitors and eliminates abnormal cells, including potential cancer cells, through processes such as immunosurveillance.
