Cancer genes and tumourigenesis

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what is tumorigenesis
a form of somatic evolution
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how is tumour development characterised
by multiple rounds of mutation and selection
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what is angiogenesis
new blood vessels being formed
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why do tumours need blood vessels
needed to support tumour growth beyond 1 million cells
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difference between normal cell and cancer cell adhesion
normal- adhesive and embedded in tissue. cancer - lost adhesiion (cadherin), can travel to other tissues
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whats unique about cancer genomes
they show abnormalities
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what favours tumour progression
acquiring the mutator phenotype
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how many genes which mutations have implicated in cancer
488
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the 2 gene types are
oncogenes, tumour supressor
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what do tumour supressor genes do
inhibit cell proliferation and tumour development
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what do oncogenes do
drive abnormal cell proliferation, can enter cells as a virus
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what is a proto-oncogenes
a normal gene which, when altered by mutation, becomes an oncogene
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what are the different types of tumour supressors
caretakers, gatekeepers, landscapers
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function of caretakers
promote genome stability & control mutation rate
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gatekeepers function
monitor cell division and death
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landscapers function
control the cellular microenvironment
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Other cards in this set

Card 2

Front

how is tumour development characterised

Back

by multiple rounds of mutation and selection

Card 3

Front

what is angiogenesis

Back

Preview of the front of card 3

Card 4

Front

why do tumours need blood vessels

Back

Preview of the front of card 4

Card 5

Front

difference between normal cell and cancer cell adhesion

Back

Preview of the front of card 5
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