| A tumorigenic ovarian cancer cell line failed to form tumours in athymic mice. |
| Cancer initiating cells are 1,000 times more tumorigenic than other cancer cells and are capable of self-renewals. |
| The repeat long-term mouse study showed evidence of a tumorigenic response in the livers of the females at the highest dose level, however this was not considered to be biologically significant. |
| So far, more than 2,500 components have been identified in the tobacco leaf and more than 3,900 components in tobacco smoke. Many of these have possible tumorigenic and carcinogenic effects. |
| This process is thought to stimulate tumorigenic growth and to allow the intraductal proliferations to progress to carcinoma. |
| Carbofuran was not carcinogenic or tumorigenic in the two-year studies in rats and mice, based on both gross and microscopic examinations. |
