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Therapeutic vaccines targeting human papillomavirus (HPV) E6 and E7 proteins are crucial for treating cervical cancer. Combining these vaccines with immunomodulators enhances cellular immunity against persistent HPV infections.

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Area of Science:

  • Oncology
  • Immunology
  • Virology

Background:

  • Cervical cancer is a major global malignancy in women.
  • Persistent human papillomavirus (HPV) infection, particularly HPV16 and 18, is the primary cause.
  • Current vaccines are prophylactic; therapeutic strategies are needed for established infections.

Purpose of the Study:

  • To review recent immunotherapeutic strategies for HPV-induced cervical neoplasia since 2008.
  • To explore the role of immunomodulators in enhancing HPV-specific cellular immunity.
  • To assess the potential of combined therapeutic vaccines and immunomodulators for clinical success.

Main Methods:

  • Literature review of studies published since 2008.
  • Focus on immunotherapeutic strategies targeting HPV early proteins (E6 and E7).
  • Analysis of various immunomodulators: toll-like receptor adjuvants, cytokines, costimulatory molecules, and agents targeting immunosuppression.

Main Results:

  • Sustained expression of HPV E6 and E7 proteins in lesions are viable therapeutic targets.
  • Immunomodulators are essential for enhancing HPV-specific cellular responses, especially for subunit vaccines.
  • Different classes of immunomodulators show promise in activating innate and adaptive immunity and overcoming tumor-induced immunosuppression.

Conclusions:

  • Therapeutic vaccines targeting HPV oncoproteins combined with immunomodulators offer a promising strategy for cervical cancer.
  • Delivery-based approaches alongside immunomodulation may improve clinical outcomes.
  • Further research into combined strategies is crucial for developing effective treatments for HPV-induced neoplasia.