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What is Cancer??. Cancer The name for disease(s) in which the body's cells become abnormal and uncontrollably divide.

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Presentation on theme: "What is Cancer??. Cancer The name for disease(s) in which the body's cells become abnormal and uncontrollably divide."— Presentation transcript:

1 What is Cancer??

2 Cancer The name for disease(s) in which the body's cells become abnormal and uncontrollably divide.

3 Normal cells stop dividing; Cancer cells don’t ! A healthy cell must: –r–r–r–receive adequate nutrition –b–b–b–be attached to other cells (to a membrane or to fibers between cells) to divide. –s–s–s–stop dividing if they get too crowded.

4 Cancer cells continue to divide, even when crowded. They also can detach and spread to other parts of the body (known as metastasis). breast cancer cells

5 Causes of Cancer: Mutations Normal cell division is controlled primarily by genes that code for growth factors. Mutations in these genes can lead to cancer.

6 Mutations Any change to DNA. The change can result in: Damaged gene(s) Missing gene(s) Gene(s) that end up in the wrong place mistakes when a cell divides

7 If a change DNA happens in a sex cell, the mutation can be passed on to the child.

8 Environmental Mutations- Carcinogens Any substance that causes cancer Includes: tobacco, asbestos, X- rays, UV rays, some organic solvents, industrial pollutants, or even viral infections!!

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16 Types Kinds of Cancer Carcinoma - Cancer that begins in skin or tissues that line the inside or cover the outside of internal organs.Carcinoma - Cancer that begins in skin or tissues that line the inside or cover the outside of internal organs. Sarcoma – A cancer of connective or supportive tissue. These types of tissue include bone, cartilage, fat, muscle, and blood vessels.Sarcoma – A cancer of connective or supportive tissue. These types of tissue include bone, cartilage, fat, muscle, and blood vessels.

17 Lymphoma – solid tumors that grow inLymphoma – solid tumors that grow in tissues that form blood (can cause leukemia uncontrolled WBC production). tissues that form blood (can cause leukemia uncontrolled WBC production).

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19 Stem Cell Therapy –Stem Cell Therapy – experimental – such as replacement of bone marrow stem cells Genetic Therapy – Genetic screening -Genetic Therapy – replace faulty tumor suppressor genes OR Genetic screening - Identify which medicines work best on specific cancer cells based on receptors etc.

20 Cancer Treatments

21 Cancer Treatments Chemotherapy –Chemotherapy – chemicals used to kill cancer cells or make them less active Radiation therapy–Radiation therapy– using ionizing radiation to kill cancer cells and shrink tumors. Surgery –Surgery – remove tumors and cancerous tissue

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