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Genital human papillomavirus infection
D R Lowy1, R Kirnbauer, J T Schiller
1Laboratory of Cellular Oncology, National Cancer Institute, Bethesda, MD 20892.
Summary
Genital human papillomavirus (HPV) infections are common and can lead to cancer. Developing vaccines targeting high-risk HPV types, like HPV16, is a key goal for prevention and treatment.
Area of Science:
- Virology
- Oncology
- Immunology
Background:
- Genital human papillomavirus (HPV) is a common sexually transmitted infection.
- While many HPV infections are transient, some lead to persistent lesions and carcinogenic progression.
- High-risk HPV types are strongly associated with high-grade dysplasia and carcinomas, with HPV16 found in 90% of cervical cancers.
Purpose of the Study:
- To explore the potential for developing vaccines against high-risk genital HPV types.
- To identify potential targets for therapeutic vaccines, such as viral oncoproteins.
- To investigate the feasibility of a prophylactic vaccine based on virus-like particles.
Main Methods:
- Review of current understanding of HPV infection and its link to cancer.
- Analysis of the role of viral oncoproteins (E6 and E7) in tumor progression.
- Examination of the self-assembly of L1 major virion proteins into virus-like particles.
Main Results:
- High-risk HPV types are oncogenic and prevalent in cervical cancers.
- Viral oncoproteins E6 and E7 are expressed in HPV-associated tumors, suggesting they are potential therapeutic targets.
- L1 proteins can self-assemble into virus-like particles, indicating a basis for prophylactic vaccines.
Conclusions:
- Vaccine development against high-risk genital HPV is a feasible and desirable goal.
- Therapeutic vaccines targeting E6 and E7 oncoproteins may combat existing HPV-driven tumors.
- Prophylactic vaccines based on L1 virus-like particles show promise for preventing HPV infection.