Carcinogenic human papillomavirus infection

Area of Science:

• Oncology
• Virology
• Public Health

Background:

• Human papillomavirus (HPV) infections are common and sexually transmitted.
• Specific high-risk HPV genotypes, particularly HPV16, are responsible for nearly all cervical cancers and a significant proportion of other anogenital and oropharyngeal cancers.
• HPV oncoproteins E6 and E7 disrupt cellular growth regulation, contributing to cancer development.

Purpose of the Study:

• To review the role of human papillomavirus (HPV) in cancer development.
• To discuss the impact of HPV on cervical, anogenital, and oropharyngeal cancers.
• To evaluate the potential of HPV vaccination and screening in cancer prevention.

Main Methods:

• Literature review of HPV infection, carcinogenicity, and prevention strategies.
• Analysis of the mechanisms of HPV-induced cancer, including oncoprotein activity.
• Assessment of current and future applications of HPV testing and vaccination in public health programs.

Main Results:

• Persistent high-risk HPV infections can lead to cancer through the accumulation of host genetic mutations.
• The majority of screening-detected precancers are treated, indicating potential overtreatment.
• Effective preventive vaccines and sensitive HPV DNA/RNA tests have been developed.

Conclusions:

• HPV vaccination programs and HPV testing offer a promising strategy to significantly reduce HPV-related cancer incidence.
• HPV testing is likely to supersede cytology-based screening for cervical cancer due to its higher negative predictive value.
• Global implementation of HPV vaccination and screening faces significant challenges that require strategic planning and resource allocation.