Tag: ‘tumors’

Cancer Stem Cell

The cancer stem cell is a hypothetical type of stem cell that would form tumors while the properties of stem cells as self-renewal and the ability to differentiate into multiple cell types. One theory suggests that these cells persist in tumors as a distinct population and cause relapse and metastasis in giving new tumor growth. The development of specific therapies aimed at cancer stem cells in hopes of improving survival and quality of life of cancer patients, especially those who suffer from metastases.

Existing cancer treatments were developed mainly with animal models, where therapies able to promote tumor shrinkage were deemed effective. However, animals can not provide a complete model of human disease. In particular, tumor relapse is exceptionally difficult to study in mice, whose lives do not exceed two years.