Tumor Biology

, Volume 32, Issue 3, pp 425–440

Cancer stem cells and cancer therapy

Review

DOI: 10.1007/s13277-011-0155-8

Cite this article as:
Soltanian, S. & Matin, M.M. Tumor Biol. (2011) 32: 425. doi:10.1007/s13277-011-0155-8

Abstract

Cancer stem cells (CSCs) are a subpopulation of tumour cells that possess the stem cell properties of self-renewal and differentiation. Stem cells might be the target cells responsible for malignant transformation, and tumour formation may be a disorder of stem cell self-renewal pathway. Epigenetic alterations and mutations of genes involved in signal transmissions may promote the formation of CSCs. These cells have been identified in many solid tumours including breast, brain, lung, prostate, testis, ovary, colon, skin, liver, and also in acute myeloid leukaemia. The CSC theory clarifies not only the issue of tumour initiation, development, metastasis and relapse, but also the ineffectiveness of conventional cancer therapies. Treatments directed against the bulk of the cancer cells may produce striking responses but they are unlikely to result in long-term remissions if the rare CSCs are not targeted. In this review, we consider the properties of CSCs and possible strategies for controlling the viability and tumourigenecity of these cells, including therapeutic models for selective elimination of CSCs and induction of their proper differentiation.

Keywords

Cancer stem cellTumourDifferentiation therapyElimination therapy

Copyright information

© International Society of Oncology and BioMarkers (ISOBM) 2011

Authors and Affiliations

  1. 1.Department of Biology, Faculty of ScienceFerdowsi University of MashhadMashhadIran
  2. 2.Cell and Molecular Research Group, Institute of BiotechnologyFerdowsi University of MashhadMashhadIran