Growth factors as active participants in carcinogenesis: a perspective

J Halper1

  • 1Department of Pathology, College of Veterinary Medicine, The University of Georgia, Athens, GA 30602-7388, USA. jhalper@uga.edu

Veterinary Pathology
|January 19, 2010
PubMed

Insights

Growth factors regulate cell growth and development. Therapies targeting growth factor pathways, like tyrosine kinase inhibitors, treat cancers and chemotherapy side effects.

Area of Science:

  • Molecular Biology
  • Oncology
  • Pharmacology

Background:

  • Growth factors are peptides crucial for cell proliferation, embryonic development, and differentiation.
  • Cancer therapies increasingly target cell signaling pathways, including those involving growth factors.
  • Targeting growth factor receptors with monoclonal antibodies or tyrosine kinase inhibitors is a key strategy in oncology.

Purpose of the Study:

  • To review the role of growth factors in normal development and disease.
  • To discuss therapeutic strategies targeting growth factor signaling in human malignancies.
  • To explore the use of growth factors in managing chemotherapy side effects.

Main Methods:

  • Review of scientific literature on growth factor biology and cancer therapy.
  • Analysis of therapeutic modalities involving growth factor activity or inhibition.
  • Discussion of specific examples like epidermal growth factor receptor inhibitors and imatinib mesylate.

Main Results:

  • Targeting growth factor receptors is effective in treating certain cancers, such as breast cancer with anti-EGFR antibodies.
  • Tyrosine kinase inhibitors, like imatinib mesylate, are successful in modulating signal transduction pathways.
  • Growth factors themselves can be used to mitigate severe side effects of chemotherapy.

Conclusions:

  • Growth factor signaling pathways are critical targets for cancer treatment.
  • Inhibition of growth factor activity is a major therapeutic approach in oncology.
  • Growth factors play a dual role, being targets for therapy and agents for supportive care.

Related Concept Videos

Mitogens and the Cell Cycle02:38

Mitogens and the Cell Cycle

Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
Mitogens and the Cell Cycle02:38

Mitogens and the Cell Cycle

Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
Mutagenicity and Carcinogenicity01:25

Mutagenicity and Carcinogenicity

Mutagenicity and carcinogenicity refer to the ability of drugs to cause genetic defects and induce cancer, respectively. The International Agency for Research on Cancer (IARC) classifies agents into four groups based on their carcinogenic potential. Group 1 agents are known human carcinogens; group 2A agents are probably carcinogenic to humans; group 3 agents lack data to support their role in carcinogenesis; and group 4 includes agents for which data support that they are not likely to be...
Cancer-Critical Genes I: Proto-oncogenes01:33

Cancer-Critical Genes I: Proto-oncogenes

Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
Cancer-Critical Genes I: Proto-oncogenes01:33

Cancer-Critical Genes I: Proto-oncogenes

Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
Cancer Prevention02:59

Cancer Prevention

Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
Some...