Abnormal cells form when their DNA becomes damaged, leading to changes in their appearance and properties.
Understanding Abnormal Cell Formation
Cells become abnormal due to damage to their DNA, which acts as their instruction manual. This damage can lead to changes in how the cells look and function.
The Role of DNA Damage
- DNA as Instructions: DNA contains all the information a cell needs to function properly.
- Damage Impact: When DNA is damaged, the cell's instructions are disrupted.
- Consequences: This disruption can cause the cell to behave differently, leading to abnormal growth and appearance.
Dysplasia: An Example
According to the reference, if abnormal cells grow in body tissue such as skin, this condition is called dysplasia.
Key Factors in Abnormal Cell Formation
Here's a breakdown of the key factors involved:
| Factor | Description |
|---|---|
| DNA Damage | The primary cause; can result from various sources (e.g., radiation, chemicals, viruses). |
| Altered Appearance | Abnormal cells often look different from normal cells under a microscope. |
| Changed Properties | Abnormal cells may grow faster, ignore signals to stop growing, or resist cell death. |
Examples of Causes of DNA Damage
Here are some common causes of DNA damage that can lead to abnormal cell formation:
- Radiation Exposure: Exposure to UV radiation or other forms of radiation.
- Chemicals: Exposure to certain chemicals and toxins.
- Viruses: Infection with certain viruses that can alter cell DNA.
- Genetic Mutations: Inherited genetic mutations that predispose cells to become abnormal.
