Related Experiment Video
Updated: Apr 24, 2026

Retroviral Scanning: Mapping MLV Integration Sites to Define Cell-specific Regulatory Regions
Published on: May 28, 2017
Human endogenous retrovirus np9 gene is over expressed in chronic lymphocytic leukemia patients
Sabrina Fischer1, Natalia Echeverría1, Gonzalo Moratorio2
1Laboratory of Molecular Virology, Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay.
Abstract:
The human genome contains a large number of endogenous retroviruses (HERVs). Their reactivation has frequently been observed in patients with cancer. Considering their role in the carcinogenesis process, we aimed to study the possible relationship between HERVs gene expression and Chronic Lymphocytic Leukemia (CLL). We focused on two viral genes gag and np9, the latter presumably an oncogene. We found that the transcriptional activity of HERV-K np9 gene was greater in CLL patients than in healthy donors. However, gag expression was not significantly increased. These findings suggest a noteworthy relationship between CLL disease and HERV-K np9 expression.
More Related Videos
Related Concept Videos
Non-LTR Retrotransposons
Mechanisms of Retrovirus-induced Cancers
Retroviruses
LTR Retrotransposons
The internal coding region of LTR retrotransposons and their mechanism of transposition closely resembles a...
Rous Sarcoma Virus (RSV) and Cancer
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...
Retrovirus Life Cycles

