204.4 ð ç« æ«éèš
- HPV: dsDNA papillomavirus, > 200 types, 40 anogenital
- High-risk types: 16, 18 â ~ 70% cervical CA; 31, 33, 45, 52, 58 etc.
- Low-risk: 6, 11 â genital warts + RRP
- Diseases: cervical CA, anal CA, oropharyngeal CA (rising), vulvar / vaginal / penile, warts, RRP
- E6 (p53) + E7 (Rb) = oncogenes
- Vaccine Gardasil 9 (9vHPV): 9 types, 2-dose 9-14, 3-dose 15-26; shared 27-45
95% efficacy preventing HPV infection + pre-cancer
- Cervical screening (USPSTF 2024): HPV primary q5y preferred 25-65
- ANCHOR 2024: AIN 2-3 treatment reduces anal CA in HIV+
- Pembrolizumab + chemo for advanced cervical CA (KEYNOTE-826)
- WHO 2030: 90/70/90 cervical CA elimination
- Treatment: genital warts (imiquimod / cryotherapy / surgical); cervical pre-cancer (LEEP / cone); cancer (surgery + chemoradiation + ICI)