Prophylactic Vaccines Against HPV Infection

Prophylactic HPV vaccines.

The HPV L1 VLP vaccines are immensely important developments in public health and the benefits that they promise are immense, offering the opportunity to prevent, in the long term, 80% of cervical cancers, 60% of vulval cancers and 80% of anal cancers in women. In the short to medium term they will prevent at least 90% of genital warts and have a major impact on the incidence of high grade CIN,...

Prophylactic HPV Vaccines

Cervical cancer and its precursor intra-epithelial lesions are linked to infection by a subset of human papillomavirus (HPV) types, the so-called “high-risk” HPVs, the most prevalent being HPV16 and HPV18. Two prophylactic vaccines containing combinations of the major capsid protein (L1) of HPV16 and HPV18 have been shown to efficiently prevent infection by inducing capsid-specific neutralizing...

HPV vaccines prophylactic, not therapeutic.

Development of prophylactic HPV vaccines.

Since several years it has been accepted that persistent infection with certain (so called-high risk: HR) types of Human papillomaviruses (HPV) represents a strong risk factor for cervical cancer. The most frequent HR HPV types 16 and 18 account for about 70% of this tumour, which is the second most frequent malignancy in women worldwide. Several studies in animal papillomavirus models revealed...

Chapter 12: Prophylactic HPV vaccines: underlying mechanisms.

Human papillomavirus virus-like particles (HPV VLP) can be generated by the synthesis and self-assembly in vitro of the major virus capsid protein L1. HPV L1 VLPs are morphologically and antigenically almost identical to native virions, and this technology has been exploited to produce HPV L1 VLP subunit vaccines. The vaccines elicit high titres of anti-L1 VLP antibodies that persist at levels ...