Related Experiment Video
Updated: Sep 21, 2025
11:54
Measurement of BK-polyomavirus Non-Coding Control Region Driven Transcriptional Activity Via Flow Cytometry
Published on: July 13, 2019
9.1K
In Vitro Study Evaluating the Effect of Different Immunosuppressive Agents on Human Polyomavirus BK Replication
Evaldo Favi1, Lucia Signorini2, Sonia Villani2
1Kidney Transplant Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.
Transplantation Proceedings
|June 6, 2022
Summary
Everolimus and leflunomide combined with mycophenolic acid show the most promise for inhibiting BK polyomavirus (BKPyV) replication. This study suggests potential new strategies for managing BKPyV infection in kidney transplant patients.
Area of Science:
- Nephrology
- Virology
- Immunology
Background:
- BK polyomavirus (BKPyV) causes kidney transplant dysfunction.
- Current treatment involves immunosuppression minimization, which has suboptimal outcomes.
- There is a need for effective antiviral therapies against BKPyV.
Purpose of the Study:
- To evaluate the in vitro antiviral effects of leflunomide, tacrolimus, mycophenolic acid, sirolimus, and everolimus against BKPyV.
- To assess the efficacy of these immunosuppressive drugs alone and in combination.
Main Methods:
- Human renal tubular epithelial cells were infected with BKPyV.
- Cells were treated with various immunosuppressive drugs and combinations.
- Viral replication was quantified using qPCR and Western blot analysis.
Main Results:
- Leflunomide or everolimus combined with mycophenolic acid demonstrated the highest BKPyV replication reduction.
- Everolimus maintained antiviral activity when combined with tacrolimus.
Conclusions:
- Everolimus exhibits anti-BKPyV properties.
- Findings support further research into BKPyV mechanisms and clinical trials for alternative immunosuppressive strategies.
