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Cancer and the cell cycle

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Cancer and the cell cycle Powered By Docstoc
					What causes cancer?
   Cancer results when a
    cell can no longer
    control the rate of
    mitosis.
   Do you remember what
    mitosis is?
   http://www.cellsalive.c
    om/mitosis.htm

http://www.meddean.luc.edu/lumen/MedEd/medicine/derm
atology/melton/content1.htm                            On the neck
What else causes cancer?
   Cancer may be due to
    factors inside the cell,
    like enzyme
    overproduction or
    production at the
    wrong time.
   Do you remember cell
    cycle stuff?
   http://www.cellsalive.c
    om/cell_cycle.htm
                                                         Removed with
http://www.meddean.luc.edu/lumen/MedEd/medicine/dermat   liquid nitrogen
ology/melton/content1.htm
  What else causes cancer?
     Cancer can also be
      caused by
      environmental stuff.
     Can you think of                      TANNING

      some?                  Food choices



Being lazy.
This guy
watches too
much TV and
plays too
much                                            Smoking
nintendo                Radiation
What are some things you can do to
prevent cancer?
    Don’t            Eat a lot of fruits
    smoke             and vegetables
    (this
    includes
    pot)




 Wear   sunscreen.
 (Is a tan really
 that important)


                                        Exercise regularly
Do you want to see some different
types of cancer?
   ARE YOU SURE?
   OKAY BUT CLOSE YOUR EYES IF YOU
    ARE EASILY GROSED OUT.
Stomach cancer
   44 year-old man, who complained of weight
    loss and persisting vomiting
Put sunscreen on your Nose!!!
   This guy liked
    to ski. His nose
    would always
    burn.
Colon Cancer
   This is really gross.
   Get Ready.
http://www.gastrointestinalatlas.com/English/Colon_and_Rectum/Colon_Carcinoma/colon_carcinoma.html
What do you know about Lung
Cancer?
   http://cancernews.healthology.com/focus_ind
    ex.asp?f=lungcancer
 Skin cancer
    This is the hand
     of an elderly
     dentist who long
     ago took many
     X-rays without
     protecting his
     hand. He has lost
     his long finger to
     squamous cell
     carcinoma.


http://www.meddean.luc.edu/lumen/MedEd/medicine/dermatology/melton/content1.htm
Wear sunglasses
   Girls. Choose
    make-up that has
    sunscreen.




http://www.meddean.luc.edu/lume
n/MedEd/medicine/dermatology/
melton/content1.htm
What are some things that you can not
control?
   Your genes.
   What do your genes have to do with cancer?
   What do they have to do with control of the cell cycle?
   Genes code for proteins.
   What are enzymes?
   Proteins.
   What controls the cell cycle?
   enzymes.
   What causes cancer?
   Cells that divide out of control - something is wrong with the
    cell cycle. Probably the enzymes at the cell cylce.
           Credits
http://www.gastrointestinalatlas.com/English/Colon_and_Rectum/Colon_Carcinoma/colon_carcin
       oma.html

http://cancernews.healthology.com/focus_index.asp?f=lungcancer

http://www.cellsalive.com

http://www.meddean.luc.edu/lumen/MedEd/medicine/dermatology/melton/content1.htm

http://tc.bmjjournals.com/cgi/content/full/9/1/3
Control of the Cell Cycle
(summary of main ideas)
   The cell cycle is
    controlled by key
    enzymes that are
    produced at specific
    points in the cell cycle.
Control of the Cell Cycle
(summary of main ideas)
                     Cancer is caused by genetic
                      and environmental factors
                      that change the genes that
                      control the cell cycle.
                     For some types of cancer,
                      research has shown that
                      lifestyle choices like eating
                      a healthy diet and exercising
                      regularly can reduce the
                      incidence of cancer.

				
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posted:8/6/2012
language:English
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