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Epithelial tissue covers the body surfaces, lines internal organs and forms glands. It is the most common type of tissue where cancers develop. Two attributes of epithelial tissue that make cancer more likely to develop are:
Rapid cell turnover: Epithelial tissue undergoes rapid cell turnover, meaning that cells are constantly being replaced. This high rate of cell division increases the likelihood of errors occurring during DNA replication, which can lead to mutations and the formation of cancerous cells.
Exposure to environmental factors: Epithelial tissue is often in direct contact with the external environment or is exposed to various environmental factors such as toxins, pollutants, and UV radiation. These environmental factors can damage DNA and increase the likelihood of mutations, which can promote the development of cancerous cells.
Additionally, epithelial tissue is organized in layers and is tightly packed, which can create an environment that promotes the accumulation of genetic mutations and the development of cancerous cells. This tissue type also has a high capacity for angiogenesis, or the formation of new blood vessels, which can promote tumor growth and metastasis.
Overall, the combination of rapid cell turnover and exposure to environmental factors makes epithelial tissue more susceptible to genetic mutations and the development of cancerous cells.
