Related Experiment Video

Updated: Aug 14, 2026

Co-Culture and Transduction of Murine Thymocytes on Delta-Like 4-Expressing Stromal Cells to Study Oncogenes in T-Cell Leukemia
09:43

Co-Culture and Transduction of Murine Thymocytes on Delta-Like 4-Expressing Stromal Cells to Study Oncogenes in T-Cell Leukemia

Published on: June 9, 2023

Increased expression of c-myc is associated with thymoma in rats infected with murine leukemia virus A8

Tomoko Hirano1, Rihito Watanabe, Sayaka Takase-Yoden

  • 1Department of Bioinformatics, Faculty of Engineering, Soka University, Hachioji, Tokyo 192-8577, Japan.

Microbiology and Immunology
|December 21, 2005
PubMed

Infection of rats with Friend murine leukemia virus (Fr-MLV) clone A8 causes thymoma in all the animals within 7 weeks. The rapid induction of thymoma is associated with a unique enhancer structure in the U3 region of the A8-LTR. Our Southern blot analyses showed that the thymomas were oligo clonal. The A8-induced thymomas showed 3-to 11-fold overexpression of c-myc mRNA. These results suggest that provirus insertion into particular positions of the host genome is correlated with tumorigenesis after A8 infection and that up-regulation of c-myc plays an important role in the induction of thymoma.

More Related Videos

A Detailed Protocol for Characterizing the Murine C1498 Cell Line and its Associated Leukemia Mouse Model08:00

A Detailed Protocol for Characterizing the Murine C1498 Cell Line and its Associated Leukemia Mouse Model

Published on: October 14, 2016

Derivation of Thymic Lymphoma T-cell Lines from Atm-/- and p53-/- Mice17:59

Derivation of Thymic Lymphoma T-cell Lines from Atm-/- and p53-/- Mice

Published on: April 3, 2011

Related Concept Videos

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...
Abnormal Proliferation02:23

Abnormal Proliferation

Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the daughter...
Mechanisms of Retrovirus-induced Cancers01:51

Mechanisms of Retrovirus-induced Cancers

Retroviruses are RNA viruses that have been shown to cause cancers in diverse species, including chickens, mice, cats, and monkeys. The RNA genomes of these viruses are first reverse-transcribed into single and then double-stranded DNA (dsDNA) copies. This dsDNA called proviral DNA then integrates into the host genome. Subsequently, the host cell transcribes the proviral DNA in concert with the chromosomal DNA. This leads to the production of viral RNA and proteins that assemble at the host...
Mouse Models of Cancer Study02:43

Mouse Models of Cancer Study

Mice have long served as models for studying human biology and pathology because of their phylogenetic and physiological similarity with humans. They are also easy to maintain and breed in the laboratory, and hence, many inbred strains are now available for research. Studies on mice have contributed immeasurably to our understanding of cancer biology.
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...