Rapid and uncontrollable development and production of cells.

1
Cancer
Rapid and uncontrollable development and
production of cells.
2
Development of Cancer Cells

• Inheritance may increase risk
• Proto-oncogenes and tumor suppressor genes mutate
  or become damaged by carcinogens
• Known carcinogens
• Viruses and bacteria
• Environmental chemicals
• Tobacco
• Radiation
• Dietary factors

3
Conversion

• Conversion begins with a mutation (a change in
  DNA) by
• Chemical
• Physical
• Biological

Conversion
4
Production of Cancer Cells
Development and Progression
5
Development Progression of Cancer

• Begins when a chemical substance stimulates
  growth of a mutated cell
• Those chemical substances influence a 2nd stage
  of carcinogens called promoters.
• Promoters stimulate cell to divide uncontrollably
• Metastasis- cancer traveling to other sites like
  a forest fire

6
Development of a Benign Tumor
7
Development of a Malignant Tumor
8
Overview of
Cancer Development
9
Ultraviolet Radiation
Skin Cancer
ozone
10
Ozone

• Screens out 99 of harmful UV light
• Ozone produced by lightening
• 1 in ozone will result in a 2 in skin
  cancer
• Holes in ozone
• Dupont- CFCs hairspray, refrigerators, air
  conditioning
• Which country has the highest rate of skin cancer?

11
Skin Cancer

• Avoid sun between 10am to 4pm.
• Wear sunscreen w/ SPF 40.
• Wear appropriate clothing.

12
Skin Cancer

• Malignant melanoma
• 2 of all cancers
• Risks
• Skin type
• Sun exposure
• Family history
• Age
• Immunological status

Normal mole Melanoma

• A asymmetry
• B border
• C color
• D diameter

13
Testing

• Genetic testing
• Biopsy
• Blood test
• X-rays, PET, MRI
• Visual tactile observation

14
Treatments

• Surgery
• Radiation
• Chemotherapy
• Homeopathy

15
Prevention

• Know family history
• Get regular medical screenings
• Learn self-exam techniques
• Avoid direct sunlight
• Watch your diet and weight
• Dont smoke
• Drink alcohol in moderation (alcohol decrease
  heart disease, but increases risk of certain
  cancers)
• Become educated

16
INQUIRY

• What do CFCs do?
• What is a proto-oncogene?
• Name 3 carcinogens.
• What are the ABCDs of skin cancer?
• What is the function of ozone?
• Who is Henrietta Lacks?