Why More Young People Are Getting Colon Cancer

What is a concerning trend observed in colorectal cancer diagnoses?

• A decrease in cases among older adults.

• An increase in cases among people under the age of 50.

• A uniform increase in cases across all age groups globally.

• A decline in diagnoses due to improved screening methods.

What is Colibactin, the bacterial toxin linked to early-onset colorectal cancer?

• A beneficial enzyme that aids digestion.

• A type of probiotic that improves gut health.

• A genotoxin produced by certain E. coli strains that damages DNA.

• A genetic mutation inherited from parents.

How does the bacterial toxin Colibactin contribute to DNA damage?

• It strengthens the DNA strands, making them resistant to repair.

• It causes the DNA to replicate too quickly, leading to cell death.

• It frequently swaps out DNA building blocks and can insert or delete sections, leading to frameshift mutations.

• It prevents the immune system from detecting and destroying cancerous cells.

Why is early exposure to Colibactin-producing E. coli particularly concerning for colorectal cancer development?

• It makes the body immune to future cancer treatments.

• It causes immediate and severe symptoms in childhood.

• It can lead to DNA mutations that give cancer a significant head start, potentially turning off tumor suppressor genes like APC.

• It makes individuals more susceptible to other types of cancer later in life.