Related Experiment Video
Updated: Dec 24, 2025

Measurement of BK-polyomavirus Non-Coding Control Region Driven Transcriptional Activity Via Flow Cytometry
Published on: July 13, 2019
BK polyomavirus: virus-cell interactions, host immune response, and viral pathogenesis
Simon Mazalrey1, Dorian Mc Ilroy1, Céline Bressollette-Bodin2
1EA 4271 Immunovirologie et polymorphisme génétique, Université de Nantes, 1, rue Gaston Veil, 44000 Nantes, France.
Abstract:
The BK polyomavirus (BKPyV) is one of the main human polyomaviruses. After primary infection, it establishes a persistent infection, and acts as an opportunistic pathogen, innocuous in immunocompetent hosts, but causing potentially serious pathology in the context of immunosuppression, in particular in kidney and hematopoietic stem cell graft recipients. Much progress has been made in recent years in the description of virus-cell interactions, but many aspects of viral physiopathology remain mysterious, principally due to the asymptomatic nature of infection in immunocompetent individuals and the lack of an animal model. The characteristics of the antiviral immune response are beginning to become more clearly understood, particularly in kidney transplant patients. Work in these areas is important in order to identify patients at high risk of developing a severe infection. Indeed, in the absence of an effective antiviral therapy few therapeutic options are available, and patient management remains based on modulation of immunosuppressive therapy.
Insights
BK polyomavirus (BKPyV) causes persistent infections and can lead to serious conditions in immunocompromised patients, especially kidney transplant recipients. Understanding the immune response is crucial for identifying at-risk individuals due to limited treatment options.
Area of Science:
- Virology
- Immunology
- Transplantation
Background:
- BK polyomavirus (BKPyV) establishes persistent infections and is an opportunistic pathogen.
- It causes severe pathology in immunosuppressed individuals, particularly kidney and stem cell transplant recipients.
- Understanding BKPyV pathogenesis is challenging due to asymptomatic primary infections and lack of animal models.
Purpose of the Study:
- To elucidate the physiopathology of BKPyV infections.
- To understand the antiviral immune response in BKPyV infection.
- To identify high-risk patients for severe BKPyV-associated disease.
Main Methods:
- Review of recent literature on BKPyV-host interactions.
- Analysis of antiviral immune responses in kidney transplant patients.
- Investigation of viral physiopathology and clinical manifestations.
Main Results:
- Progress has been made in understanding virus-cell interactions.
- Antiviral immune response characteristics are becoming clearer, especially in kidney transplant patients.
- Identifying patients at high risk for severe infection is an ongoing challenge.
Conclusions:
- Further research into BKPyV infection is vital for clinical management.
- Understanding the immune response is key to managing BKPyV in transplant recipients.
- Current management relies on immunosuppression modulation due to limited therapies.
Related Concept Videos
Immune Response Against Viral Pathogens
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
Retrovirus Life Cycles
Size and Structure of Viral Genomes
Cytotoxic T Cells-mediated Immune Response
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
Introduction to Virus
Retroviruses

