B6-076 Pathologic Fracture: Metastatic Cancer Flashcards
what factor makes a tumor malignant?
the ability to kill the patient
each “hallmark” of a malignant cancer is the result of
single mutation
oncogenes causes […] of function mutations
gain
tumor suppressor genes cause […] of function mutations
loss
signal transducing proteins
RAS
BRAF
JAK2
NOTCH
ABL
**oncogenes
nuclear regulatory proteins
MYC
NMYC
**oncogenes
cell cycle regulators
Cyclin D1
CDK4
**oncogenes
enablers of geonomic stability
TP53
**tumor suppressor
how many alleles of oncogenes need to be affected to increase the odds of metaplasia?
1
how many alleles of tumor suppressor genes need to be affected to increase the odds of metaplasia?
both
[oncogene or tumor suppressor]
more likely to be inherited mutation
tumor suppressor
plasma cell myeloma is likely to present as a […] metastases
lytic
likely to present as sclerotic/blastic metastases [2]
prostate adenocarcinoma
breast carcinoma
[what stage?]
invaded lamina propria
T1
[what stage?]
invades muscularis propria?
T2
[what stage?]
invades adipose tissue
T3
[what stage?]
invades other organs
T4
all neoplasms are […]
clonal
a malignant tumor of gland forming cells is called
adenocarcinoma
a benign tumor of gland forming cells is
adenoma
can oncogenes mutation be inherited?
no
DNA repair genes are [onco/tumor suppressor] genes
tumor suppressor
lytic metastases are associated with increased […] activity
osteoclastic
if you see a report with an allele frequency near 50%, you should be concerned about
germ line mutation
what type of gene is BRCA2?
tumor suppressor
what type of gene is EGFR?
oncogene
directed therapies are most effective at targeting
protein products of oncogenes
what kind of genes are DNA repair genes?
tumor suppressor
Li Fraumeni
tp53
why is myeloma lytic?
produces RANKL which activates osteoclasts via RANK
most common primary bone malignancy in adults
chondrosarcoma
[oncogene or tumor suppressor]
growth factors and growth factor receptors
oncogene
[oncogene or tumor suppressor]
signal-transducing proteins
oncogene
[oncogene or tumor suppressor]
nuclear regulatory proteins
oncogene
[oncogene or tumor suppressor]
cell cycle regulators
oncogene
[oncogene or tumor suppressor]
inhibitors of mitogenic signaling pathways
tumor suppressor
[oncogene or tumor suppressor]
inhibitors of cell cycle progession
tumor suppressor
[oncogene or tumor suppressor]
inhibitors of pro-growth metabolism and angiogenesis
tumor suppressor
[oncogene or tumor suppressor]
inhibitors of invasion and metastasis
tumor suppressor
[oncogene or tumor suppressor]
enablers of genomic stability
tumor suppressor
[oncogene or tumor suppressor]
DNA repair factors
tumor suppressor
DNA repair factors [3]
BRCA1
BRCA2
MMR
**tumor suppressors
MSH2, MLH1, MSH6
Lynch syndrome
BRCA1, BRCA2
familial breast/ovarian cancer
CDH1
familial gastric cancer
VHL
von Hippel-lindau
renal cell carcinoma
APC
familial colonic polyps and carcinomas
PTEN
cowden syndrome
SMAD2, SMAD4
juvenille polyposis
colonic/pancreatic carcinomas
RB
familial retinoblastoma