Pseudogenes: newly discovered players in human cancer

Laura Poliseno1

  • 1Oncogenomics Unit, Core Research Laboratory, Istituto Toscano Tumori (CRL-ITT), c/o IFC-CNR Via Moruzzi 1, 56124 Pisa, Italy. laura.poliseno@gmail.com

Science Signaling
|September 20, 2012
PubMed

Insights

Pseudogenes, once dismissed as nonfunctional DNA, are now recognized for their diverse roles in gene expression. These pseudogenes significantly impact gene regulation and are implicated in human cancer development.

Area of Science:

  • Genetics
  • Molecular Biology
  • Cancer Research

Background:

  • Pseudogenes were historically considered noncoding, nonfunctional genomic relics.
  • Their potential biological significance and regulatory roles were largely overlooked.

Purpose of the Study:

  • To highlight the emerging understanding of pseudogene functions.
  • To emphasize the role of pseudogenes in gene expression modulation and cancer pathogenesis.

Main Methods:

  • Review of recent advances in pseudogene research.
  • Analysis of functional mechanisms involving pseudogene DNA, RNA, and protein products.

Main Results:

  • Pseudogenes possess diverse and significant biological functions.
  • Pseudogene functions can influence both parental and unrelated genes.
  • Pseudogenes play a multifaceted role in the development of human cancers.

Conclusions:

  • Pseudogenes are crucial, sophisticated modulators of gene expression.
  • Pseudogenes represent a significant area of study in molecular biology and oncology.

Related Concept Videos

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-Critical Genes II: Tumor Suppressor Genes01:05

Cancer-Critical Genes II: Tumor Suppressor Genes

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 II: Tumor Suppressor Genes01:05

Cancer-Critical Genes II: Tumor Suppressor Genes

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...
Rous Sarcoma Virus (RSV) and Cancer01:03

Rous Sarcoma Virus (RSV) and Cancer

Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
RSV is a retrovirus that contains two copies of a plus-strand  RNA genome. Its genome consists of four main open...
Rous Sarcoma Virus (RSV) and Cancer01:03

Rous Sarcoma Virus (RSV) and Cancer

Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
RSV is a retrovirus that contains two copies of a plus-strand  RNA genome. Its genome consists of four main open...