tumorképzdés
Tumorképződés, or tumorigenesis, refers to the complex biological process by which normal cells transform into cancerous cells. This transformation is typically driven by a series of genetic mutations that accumulate over time, disrupting the cell's normal growth, division, and death cycles. These mutations can affect genes that control cell proliferation (oncogenes), genes that suppress tumor formation (tumor suppressor genes), or genes involved in DNA repair.
The development of a tumor is not a single event but rather a multi-step process. Initially, a
Environmental factors, such as exposure to carcinogens like tobacco smoke, UV radiation, or certain viruses, can