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Cancer Biology Basics

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3. Tumor Suppressor Genes

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Genes that help prevent cancer by repairing damaged DNA or by causing apoptosis if the damage is irreparable.

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4. Metastasis

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The process by which cancer spreads from the place at which it first arose to distant locations in the body.

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1. Cell Cycle

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The process by which a cell grows, duplicates its DNA, and divides. Dysregulation can lead to unchecked cell division, characteristic of cancer.

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2. Oncogenes

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Genes that have the potential to cause cancer. In tumor cells, they are often mutated or expressed at high levels.

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5. Apoptosis

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Programmed cell death; a mechanism used by cells to prevent cancer by destroying cells that are damaged or no longer needed.

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6. Angiogenesis

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Formation of new blood vessels; cancer cells can induce angiogenesis to supply nutrients to the tumor.

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18. Chemotherapy

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A type of cancer treatment that uses drugs to kill cancer cells by preventing them from growing, dividing, and making more cells.

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15. The Warburg Effect

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A form of altered metabolism found in cancer cells, where they favor glycolysis for energy production even in the presence of oxygen.

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8. Genomic Instability

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An increased tendency of the genome to acquire mutations when various processes involved in maintaining and replicating the genome are dysfunctional.

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7. Carcinogens

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Substances or exposures that lead to the development of cancer. They can be chemical, physical or biological.

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17. Cancer Epigenetics

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The study of heritable changes in gene function that do not involve changes in the DNA sequence. Epigenetic alterations can contribute to cancer.

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14. Hallmarks of Cancer

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Characteristics that distinguish cancer cells from normal cells, including sustained proliferative signaling, evading growth suppressors, resisting cell death, and others.

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20. Cancer Screening

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Tests and exams used to detect cancer before an individual has any symptoms, with the aim of early detection and more effective treatment.

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16. Immunotherapy

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A type of cancer treatment that helps your immune system fight cancer, using treatments such as checkpoint inhibitors or CAR-T cell therapy.

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21. Targeted Therapy

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Cancer treatments that target specific genes, proteins, or the tissue environment that contributes to cancer growth and survival.

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19. Radiation Therapy

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A cancer treatment that uses high doses of radiation to kill cancer cells and shrink tumors.

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23. Cancer Staging

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The process of determining the size of the cancer and how far it has spread, which is crucial for prognosis and treatment decisions.

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25. Carcinogenesis

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The process by which normal cells are transformed into cancer cells.

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12. Tumor Microenvironment

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The environment around a tumor, including blood vessels, immune cells, fibroblasts, signaling molecules, and the extracellular matrix.

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24. Palliative Care

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Specialized medical care for people living with serious illness, focused on providing relief from the symptoms and stress of the illness.

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9. Proto-oncogenes

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Normal genes that can become oncogenes due to mutations or increased expression. They are involved in normal cell growth and division.

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13. Cancer Stem Cells

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A subpopulation of cancer cells within a tumor that can self-renew and drive tumorigenesis.

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11. Benign vs. Malignant

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Benign tumors are non-cancerous and do not spread; malignant tumors are cancerous and can invade surrounding tissues or spread to other parts of the body.

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22. Biopsy

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A medical test that involves the removal of cells or tissues to be examined by a pathologist, often to diagnose or assess cancer.

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26. Cancer Susceptibility Genes

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Genes that make an individual more susceptible to developing cancer, often through inherited genetic mutations.

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10. Signal Transduction

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The process by which a cell converts an external signal into a functional change. Disruptions can result in cancer.

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28. Tumor Heterogeneity

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The presence of a diverse population of tumor cells with different genetic mutations and characteristics within the same tumor.

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30. Cancer Prevention

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Actions taken to lower the chance of getting cancer, including lifestyle changes and vaccinations against cancer-causing infections.

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29. Mutagens

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Agents, such as chemicals or radiation, that cause mutations in DNA, which can potentially lead to cancer.

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27. Necrosis

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The unplanned death of cells and living tissue, which can occur due to factors like infection or toxins. In cancer, necrosis can result from rapid tumor growth outpacing blood supply.

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