Abstract
Normal tissue homeostasis involves a careful balance between the normal cell loss and renewal. Stem and progenitor cells help maintain this precise and fine balance through their ability of self-renewal in a tightly regulated manner. In this regard, the gastrointestinal epithelium is unique in that cell proliferation, differentiation, and apoptosis occur in an orderly fashion along the crypt-villus axis. The colonic crypt is primarily a proliferative compartment, is monoclonal and is maintained by stem cells. The concept of tissue stem cells capable of giving rise to all differentiated cells within a given tissue has led to the concept of a cellular hierarchy in tissues and in tumors including colorectal cancer (CRC). Thus, only a few cells may be necessary and sufficient for tissue repair or tumor regeneration. However, such a proposition also raises questions regarding the precise methods and markers to identify such population and to define the circumstantial evidences and place for the origin and establishment of the early mutant stem-cell population. Thus, it is imperative that we understand what cancer stem cells (CSC) are and their potential association with cancer in a tissue specific manner. In this review, we have summarized the current knowledge of stem cell organization and CSC within the colonic epithelium and discussed the potential role of CSC in the development and/or progression of CRC and as targets for therapeutic interventions.
Keywords: GREM1, cell turnover, xeno-transplantation, therapeutic interventions, mutant stem-cell population, proliferative compartment, self-renewal, Normal tissue homeostasis, apoptosis, Colorectal Cancer, wnt signaling, cancer stem cell, colonic crypt, colon cancer, Pluripotent
Current Topics in Medicinal Chemistry
Title: Cancer Stem Cells and Colorectal Cancer: An Overview
Volume: 11 Issue: 13
Author(s): Anand S. Srivastava, Amar B. Singh, Rizwan Ahmad and Punita Dhawan
Affiliation:
Keywords: GREM1, cell turnover, xeno-transplantation, therapeutic interventions, mutant stem-cell population, proliferative compartment, self-renewal, Normal tissue homeostasis, apoptosis, Colorectal Cancer, wnt signaling, cancer stem cell, colonic crypt, colon cancer, Pluripotent
Abstract: Normal tissue homeostasis involves a careful balance between the normal cell loss and renewal. Stem and progenitor cells help maintain this precise and fine balance through their ability of self-renewal in a tightly regulated manner. In this regard, the gastrointestinal epithelium is unique in that cell proliferation, differentiation, and apoptosis occur in an orderly fashion along the crypt-villus axis. The colonic crypt is primarily a proliferative compartment, is monoclonal and is maintained by stem cells. The concept of tissue stem cells capable of giving rise to all differentiated cells within a given tissue has led to the concept of a cellular hierarchy in tissues and in tumors including colorectal cancer (CRC). Thus, only a few cells may be necessary and sufficient for tissue repair or tumor regeneration. However, such a proposition also raises questions regarding the precise methods and markers to identify such population and to define the circumstantial evidences and place for the origin and establishment of the early mutant stem-cell population. Thus, it is imperative that we understand what cancer stem cells (CSC) are and their potential association with cancer in a tissue specific manner. In this review, we have summarized the current knowledge of stem cell organization and CSC within the colonic epithelium and discussed the potential role of CSC in the development and/or progression of CRC and as targets for therapeutic interventions.
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Cite this article as:
S. Srivastava Anand, B. Singh Amar, Ahmad Rizwan and Dhawan Punita, Cancer Stem Cells and Colorectal Cancer: An Overview, Current Topics in Medicinal Chemistry 2011; 11 (13) . https://dx.doi.org/10.2174/156802611796117694
DOI https://dx.doi.org/10.2174/156802611796117694 |
Print ISSN 1568-0266 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4294 |
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