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High-Risk HPV Oncoproteins and PD-1/PD-L1 Interplay
Shuai Zhen1,2
1Center for Translational Medicine, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, PR China.
Abstract:
Human papillomavirus (HPV) related cancers often arise from a background of chronic inflammation. Systemic treatment for advanced HPV-related cancers has been disappointing due to their strong resistance to chemotherapy and even to tyrosine kinase inhibitors (TKIs). Recently, the use of immune checkpoint inhibitor (ICI) therapy has revolutionized the systemic treatment of advanced HPV-related cancers. For the first time, clinical trials testing ICIs, anti-CTLA-4, and anti-PD1/PDL1 reported a survival benefit in patients with sorafenib resistance. However, it took a long time to find the right combination regimen to use ICIs in combination with the antiangiogenic agent bevacizumab to substantially prolong overall survival (OS) of patients with advanced HPV-related cancer after sorafenib. This review provides a comprehensive history of ICI therapy in HPV-related cancer, up-to-date information on the latest ICI clinical trials, and discusses the recent development of novel ICIs that would potentially lead to a new checkpoint blockade therapy for advanced HPV-related cancer.
Insights
Immune checkpoint inhibitors (ICIs) have transformed advanced HPV-related cancer treatment, offering survival benefits where chemotherapy and TKIs failed. Combination therapy with ICIs and bevacizumab shows promise for prolonged overall survival.
Area of Science:
- Oncology
- Immunotherapy
- Cancer Research
Background:
- Human papillomavirus (HPV)-related cancers often develop with chronic inflammation.
- Conventional treatments like chemotherapy and tyrosine kinase inhibitors (TKIs) show limited efficacy in advanced HPV-related cancers.
- Tumor resistance to systemic therapies necessitates novel treatment strategies.
Purpose of the Study:
- To review the historical development and current status of immune checkpoint inhibitor (ICI) therapy for HPV-related cancers.
- To summarize recent clinical trials involving ICIs in advanced HPV-related cancers.
- To explore emerging novel ICIs for future therapeutic advancements.
Main Methods:
- Literature review of clinical trials and research on ICI therapy in HPV-related cancers.
- Analysis of treatment outcomes, including survival benefits and resistance patterns.
- Discussion of combination regimens, such as ICIs with bevacizumab.
Main Results:
- ICI therapy, including anti-CTLA-4 and anti-PD1/PDL1 agents, has demonstrated survival benefits in patients resistant to sorafenib.
- Combination therapy of ICIs with bevacizumab has significantly prolonged overall survival (OS) in advanced HPV-related cancers post-sorafenib.
- Recent trials highlight the evolving landscape of ICI applications in this patient population.
Conclusions:
- Immune checkpoint inhibitors represent a paradigm shift in treating advanced HPV-related cancers.
- Optimized combination regimens are crucial for maximizing therapeutic efficacy and patient survival.
- Ongoing research into novel ICIs holds potential for next-generation checkpoint blockade therapies.
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