Cancer stem cells and oncology therapeutics

Muhammad Al-Hajj1

  • 1Novartis Institute of Functional Genomics, 10675 John Jay Hopkins Drive Suite G213, San Diego, CA 92121, USA. MAl-Hajj@gnf.org

Current Opinion in Oncology
|November 30, 2006
PubMed
Abstract

Insights

Cancer stem cells, a subpopulation with tumor-forming potential, are found in most tumors. Targeting their self-renewal pathways may lead to new cancer drug discovery and better therapeutics.

Area of Science:

  • Oncology
  • Stem Cell Biology
  • Drug Discovery

Background:

  • Recent studies confirm the existence of cancer stem cells (CSCs) in various tumor types.
  • CSCs possess unique tumorigenic potential absent in other tumor cells.
  • Evidence suggests CSCs are present in nearly all cancer types.

Purpose of the Study:

  • To provide an overview of recent advancements in cancer stem cell research.
  • To explore the potential applications of CSCs in oncology drug discovery.

Main Methods:

  • Review of current scientific literature on cancer stem cells.
  • Analysis of evidence for CSC existence and characterization.
  • Evaluation of progress in developing in-vitro and in-vivo models.

Main Results:

  • A subpopulation of cells with high tumorigenic potential, termed cancer stem cells, has been identified across diverse tumors.
  • Deregulation of stem cell self-renewal pathways is implicated in carcinogenesis.
  • Advancements in in-vitro and in-vivo models are improving CSC research.

Conclusions:

  • Cancer stem cells are a recognized component of various tumors.
  • Ongoing research focuses on characterizing CSCs, their origins, and developing relevant assays.
  • Integrating CSC knowledge into drug discovery holds promise for improved cancer therapeutics.

Related Concept Videos

Cancer Stem Cells and Tumor Maintenance02:40

Cancer Stem Cells and Tumor Maintenance

Early diagnosis and treatment can often cure cancer. However, even with treatment, residual cells called cancer stem cells (CSC) might remain, often causing tumor recurrence. These cancer stem cells possess the potential for self-renewal and multi-lineage differentiation and are often responsible for the therapeutic resistance displayed in most cancers.
Cancer stem cells are thought to originate from tissue-specific normal stem cells or progenitor cells. The normal stem cells usually reside in...
Cancer Stem Cells and Tumor Maintenance02:40

Cancer Stem Cells and Tumor Maintenance

Early diagnosis and treatment can often cure cancer. However, even with treatment, residual cells called cancer stem cells (CSC) might remain, often causing tumor recurrence. These cancer stem cells possess the potential for self-renewal and multi-lineage differentiation and are often responsible for the therapeutic resistance displayed in most cancers.
Cancer stem cells are thought to originate from tissue-specific normal stem cells or progenitor cells. The normal stem cells usually reside in...
Distinctive Features of Adult Stem Cells vs Cancer Stem Cells01:18

Distinctive Features of Adult Stem Cells vs Cancer Stem Cells

A stem cell is an unspecialized cell that can divide without limit as needed and can, under specific conditions, differentiate into specialized cells.
Adult stem cells
Adult stem cells are tissue-specific; hence, they divide to develop the tissue from which they originate. One type of adult stem cell is the epithelial stem cell, which gives rise to the keratinocytes in the multiple layers of epithelial cells in the epidermis of the skin. Adult bone marrow has three distinct types of stem cells:...
Stem Cell Therapy for Tissue Regeneration01:21

Stem Cell Therapy for Tissue Regeneration

Stem cell therapy is a method used in regenerative medicine to repair and restore function to damaged tissues and organs. Stem cells have the potential to proliferate and differentiate into various tissue types, making them ideal candidates for tissue regeneration. For example, hematopoietic stem cell transplants are commonly used in blood cancer treatment to replenish damaged bone marrow and restore healthy blood cells.
Types of Stem Cells used in Stem Cell Therapy
The two main cell types that...
Cancer02:18

Cancer

Cancers arise due to mutations in genes involved in the regulation of cell division, which leads to unrestricted cell proliferation. Modern science and medicine have made great strides in the understanding and treatment of cancer, including eradicating cancer in some patients. However, there is still no cure for cancer. This is largely due to the fact that cancer is a large group of many diseases.
Cancer Therapies02:49

Cancer Therapies

Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
However, cancer treatments can pose several challenges, as therapies used to kill cancer cells are generally also toxic to normal cells. Moreover, cancer cells mutate rapidly and can develop resistance to chemical agents or radiation therapy. Besides, all types of cancer cells may not respond to the same therapy. Some cancer cells respond to one...