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  2. Causes of cancer - Wikipedia

    en.wikipedia.org/wiki/Causes_of_cancer

    Hereditary cancers are primarily caused by an inherited genetic defect. A cancer syndrome or family cancer syndrome is a genetic disorder in which inherited genetic mutations in one or more genes predisposes the affected individuals to the development of cancers and may also cause the early onset of these cancers. Although cancer syndromes ...

  3. Hereditary cancer syndrome - Wikipedia

    en.wikipedia.org/wiki/Hereditary_cancer_syndrome

    A hereditary cancer syndrome (familial/family cancer syndrome, inherited cancer syndrome, cancer predisposition syndrome, cancer syndrome, etc.) is a genetic disorder in which inherited genetic mutations in one or more genes predispose the affected individuals to the development of cancer and may also cause early onset of these cancers.

  4. Carcinogenesis - Wikipedia

    en.wikipedia.org/wiki/Carcinogenesis

    Development of cancer was proposed in 1971 to depend on at least two mutational events. In what became known as the Knudson two-hit hypothesis, an inherited, germ-line mutation in a tumor suppressor gene would cause cancer only if another mutation event occurred later in the organism's life, inactivating the other allele of that tumor ...

  5. Oncogene - Wikipedia

    en.wikipedia.org/wiki/Oncogene

    If, through mutation, normal genes promoting cellular growth are up-regulated (gain-of-function mutation), they predispose the cell to cancer and are termed oncogenes. Usually, multiple oncogenes, along with mutated apoptotic or tumor suppressor genes, act in concert to cause cancer. Since the 1970s, dozens of oncogenes have been identified in ...

  6. Genetic disorder - Wikipedia

    en.wikipedia.org/wiki/Genetic_disorder

    The opposite of a hereditary disease is an acquired disease. Most cancers, although they involve genetic mutations to a small proportion of cells in the body, are acquired diseases. Some cancer syndromes, however, such as BRCA mutations, are hereditary genetic disorders. [9]

  7. Two-hit hypothesis - Wikipedia

    en.wikipedia.org/wiki/Two-hit_hypothesis

    Knudson suggested that two "hits" to DNA were necessary to cause the cancer. In the children with inherited retinoblastoma, the first mutation in what later came to be identified as the RB1 gene, was inherited, the second one acquired. In non-inherited retinoblastoma, instead two mutations, or "hits", had to take place before a tumor could ...

  8. Oncogenomics - Wikipedia

    en.wikipedia.org/wiki/Oncogenomics

    Oncogenomics is a sub-field of genomics that characterizes cancer-associated genes.It focuses on genomic, epigenomic and transcript alterations in cancer. Cancer is a genetic disease caused by accumulation of DNA mutations and epigenetic alterations leading to unrestrained cell proliferation and neoplasm formation.

  9. Mutation - Wikipedia

    en.wikipedia.org/wiki/Mutation

    These types of mutations are usually prompted by environmental causes, such as ultraviolet radiation or any exposure to certain harmful chemicals, and can cause diseases including cancer. [ 91 ] With plants, some somatic mutations can be propagated without the need for seed production, for example, by grafting and stem cuttings.

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