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Cancer development is a complex process that involves multiple factors including genetic mutations, environmental exposures, and the dysregulation of cellular processes.
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The following is an overview of how cancer can develop, referencing oncogenes, tumor suppressor genes, carcinogens, and characteristics of cancer cells.
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Let's start with oncogenes.
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These are genes that have the potential to cause cancer when they're mutated or activated.
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They play a role in promoting cell growth and division.
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Normally, they are tightly regulated and promote cell growth only when necessary, but mutations can occur in oncogenes leading to their activation and continuous signaling for cell growth and division.
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This uncontrolled growth can contribute to the development of cancer.
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Tumor suppressor genes are genes that help regulate cell growth and prevent the formation of tumors.
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They work by inhibiting cell division, repairing damaged dna, and promoting cell death.
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Mutations in tumor suppressor genes can impair their normal function, allowing cells to divide uncontrollably and evade cell death mechanisms.
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This loss of tumor suppressor gene function contributes to the development of cancer.
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Carcinogens are substances or agents that have the potential to cause cancer by damaging dna or disrupting cellular processes.
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They can be found in various environmental factors such as tobacco smoke, certain chemicals, radiation, and some viruses.
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Carcinogens can directly damage dna, leading to genetic mutations that promote cancer development...