T cell therapies for human polyomavirus diseases

Area of Science:

• Immunology
• Virology
• Oncology

Background:

• Adoptive T-cell therapy is a potent treatment for viral infections and cancers.
• Human polyomaviruses (hPyVs), including BK, JC, and MCV, can cause severe disease in immunocompromised individuals.
• These viruses are linked to conditions like hemorrhagic cystitis, nephropathy, progressive multifocal leukoencephalopathy, and Merkel cell carcinoma.

Purpose of the Study:

• To review recent advances in T-cell-based immunotherapies for hPyV-associated diseases.
• To highlight the potential of adoptive T-cell transfer for treating viral infections and virus-driven cancers.

Main Methods:

• Discussion of ex vivo generated virus-specific T cells.
• Review of clinical applications in transplant recipients and immunocompromised patients.
• Analysis of T-cell targeting of viral oncoproteins in Merkel cell carcinoma.

Main Results:

• T-cell therapy shows promise in restoring immunity against hPyVs.
• Successful treatment of BKV-associated nephropathy and JCV-associated PML is being explored.
• Immune intervention targeting viral oncoproteins is a viable strategy for Merkel cell carcinoma.

Conclusions:

• T-cell-based immunotherapies represent a significant advancement in managing hPyV infections and associated malignancies.
• Further research into adoptive T-cell transfer offers potential for improved patient outcomes in challenging clinical settings.