Module 1 Unit 2 - Neoplasia Flashcards
How do cyclins control entry and progression of cell cycle
bind to Cyclin dependent kinases (CDK’s) which phosphorylate target proteins to allow porgression
G1S checkpoint
CDK 2 phosphorylates Cyclin E
G2M checkpoint
CDK1 phosphorylates Cyclin B
Tumor Suppressor genes
TP53 - initiates apoptosis
Retinoblastoma gene - prevents cell division
Direct reacting carcinogens
do not require activation by the body to become carcinogenic
Indirect reacting carinogens
procarcinogens or initiators
Active after metabolic conversion
Onco-fetal proteins
Early life proteins that if seen later in life indicate a tumor
common tumor marker
CA125
Papanicolaou test
microscopic examination of a prepared slide
Immunohistochemistry
antibody staining of tissue slides
Microarray
uses “gene chips” to perform miniature assays
Tx
primary tumor cannot be assessed
T0
no primary tumor detected
T1-4
stages of tumor
M0
no metastasis