Causes/risks
Pathophysiology of Stomach Cancer
Cancer critical genes
100

The inflammation of the stomach lining

What is gastritis?

100

Increased rates of this cellular process contribute to cell proliferation and cancer growth

What is mitosis?

100

This cancer critical gene undergoes a gain in function

What is a proto-oncogene?

200

This activity causes a 60-70% higher risk of developing gastric cancer

What is smoking?

200

This process of building new blood vessels that aids in tumour growth

What is angiogenesis?

200

A state of permanent irreversible cell cycle arrest, where cells stop dividing but don't die

What is cellular senescence?

300

Pernicious anemia causes a decrease in this bacteria-killing fluid

What is stomach acid?

300

When gastric cells move through the basement membrane into deeper tissues

What is invasion?

300

This tumour suppressor gene shares it name with a rare, fast-growing eye cancer

What is Retinoblastoma?

400

This bacteria is known to lead to most non-cardia gastric cancers

What is Helicobacter pylori?
400

Loss of this glycoprotein leads to loss of cell to cell adhesion

What is e-cadherin?

400

The hypothesis that tumour suppressor genes require both alleles to be inactivated to cause loss of function, and thus cancer

What is the two-hit hypothesis?