A person had an infection of his Peyer's patches and developed intestinal cancer. How could these two events be related?

Peyer's patches filter lymph in the intestine and would have removed the cancer cells.
Peyer's patches contain lymphocytes that may have killed the cancer cells.
Peyer's patches remove abnormal red blood cells, including cancer cells.
Peyer's patches secrete hormones that suppresses the reproduction of cancer cells.