How Does Cancer Develop? Dr Qazi Ashraf episode 1

Описание к видео How Does Cancer Develop? Dr Qazi Ashraf episode 1

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How Does Cancer Develop?
1. Genetic Mutations
Cancer begins with genetic changes (mutations) in the DNA of a cell. These mutations can:
Activate oncogenes: Genes that promote cell growth and division.
Inactivate tumor suppressor genes: Genes that normally slow cell division or repair DNA.
Disrupt apoptosis genes: Genes that control programmed cell death, allowing defective cells to survive.
2. Causes of Mutations
Mutations can be caused by:
Environmental factors: Exposure to carcinogens like tobacco, UV radiation, chemicals, or pollutants.

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