In the present study, we engrafted normal colonic epithelia and histol
ogically diagnosed colonic adenomas from a familial adenomatous polypo
sis (FAP) patient into severe combined immunodeficient (SCID) mice and
subsequently examined them histologically and molecular biologically.
Successful engraftment and metastasis was observed. The facts that hu
man normal colonic epithelium and adenomatous polyps can take in SCID
mice indicates the possibility that this human SCID mouse system will
be useful for investigating the dynamics of human carcinogenesis in va
rious tissues.