Chemotherapy of Neoplastic Diseases Flashcards
define cancer
abnormal cell growth that forms a tumor
define tumor
mass of tissue exceeding that of normal due to abnormal cell proliferation
define benign
- slow growth
- non-invasive
- no metastasis
define malignant
- rapid growth
- invasive
- metastasis
define metastasis
spreading to other body parts
what are the 6 hallmarks of cancer?
- self-sufficient growth signals
- insensitivity to anti-growth signals
- evading apoptosis
- resistance to cell cycle arrest
- sustained angiogenesis
- metastasis
doubling time is defined as the
time it take for a tumor to double in size
increased doubling time indicates
- increased chances of metastasis
- worse prognosis
cancer is ultimately considered an
inherited disease
germ-line mutations are
inherited forms of cancer
somatic mutations are
non-inherited carcinogen induced cancers
what percentage of cancer have p53 mutations?
over 70%
p53 is known as the _____________ of the genome
guardian
p53 is activated by
DNA damage
p53 elicits…. to enable….
- cell cycle arrest
- DNA repair
if damage is excessive p53 induces
apoptosis
w/ loss of p53 DNA damage goes
unrepaired