Checkpoint Apoptosis and Cancer?

📌 CONCEPT: Apoptosis is a protective mechanism that eliminates damaged or unwanted cells, thereby preventing the development of cancer.

📐 RULE / FORMULA: The process of apoptosis involves a series of cellular changes that ultimately lead to the fragmentation and removal of damaged cells.

💡 WORKED EXAMPLE: Consider a cell with damaged DNA that is at risk of becoming a cancerous cell. The cell activates pro-apoptotic proteins, leading to the activation of caspases, which ultimately cause the cell to undergo programmed cell death and be engulfed by phagocytic cells.

⚠️ COMMON MISTAKE: Failure of apoptosis can lead to the accumulation of damaged cells, which can eventually give rise to cancer. This is often due to mutations in genes that regulate apoptosis, such as BCL-2, which can prevent the activation of pro-apoptotic proteins.