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Updated: Aug 1, 2026

Analysis of Cell Cycle Position in Mammalian Cells
Published on: January 21, 2012
Human DNA oncogenic viruses and their transforming protein interactions with cell cycle control proteins
1Department of Biology, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
Purpose:
Both oncogenic viruses and cell cycle control proteins are fast-growth research areas. More and more evidence indicates that virus infection and replication are often associated with apoptosis and interfere with cell cycle pathways. To understand the mechanisms by which viral proteins regulate apoptosis and target the cellular pathways may lead to the development of new remedies for some cancers.
Data Sources:
English literature searched by MEDLINE from January 1995 to August 1998.
Study Selection And Data Extraction:
More than one hundred research papers published in these areas over the past three years. Only new and important breakthroughs in these papers are selected. The review focuses on DNA viruses associated with the development of human cancers.
Results And Conclusions:
Some DNA viruses contain oncogenic proteins which transform normal cells in vitro and induce tumors in animals. These viral proteins target the cellular pathways and block apoptosis induced by receptors or in response to signal transduction. Viral interference with host cell apoptosis leads to enhanced viral replication and may promote carcinogenesis. Oncogenes and tumor suppressor genes, such as Retinoblastoma (RB) and p53, play important roles in regulation of these interactions.
Insights
Viral oncogenes interfere with cell cycle control and apoptosis, promoting cancer development. Understanding these mechanisms may lead to new cancer treatments targeting viral proteins and cellular pathways.
Area of Science:
- Molecular Biology
- Virology
- Oncology
Background:
- Oncogenic viruses and cell cycle control proteins are rapidly advancing research fields.
- Viral infections are increasingly linked to apoptosis and cell cycle pathway disruption.
Purpose of the Study:
- To elucidate the mechanisms by which viral proteins regulate apoptosis.
- To understand how viral proteins target cellular pathways.
- To explore potential new cancer remedies based on these interactions.
Main Methods:
- Literature review of English-language publications from January 1995 to August 1998.
- Focus on breakthroughs in over one hundred research papers from the past three years.
- Selection criteria prioritized DNA viruses implicated in human cancer development.
Main Results:
- Certain DNA viruses possess oncogenic proteins capable of transforming cells and inducing tumors.
- These viral proteins target cellular pathways, inhibiting receptor-induced or signal transduction-induced apoptosis.
- Viral interference with host cell apoptosis enhances viral replication and may promote carcinogenesis.
Conclusions:
- Viral oncogenic proteins play a critical role in cancer development by manipulating host cell processes.
- Key cellular regulators, including oncogenes and tumor suppressor genes (e.g., Retinoblastoma (RB) and p53), are involved in these viral-host interactions.
- Targeting these viral mechanisms offers a promising avenue for novel cancer therapies.
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