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Updated: Jul 15, 2026

Identifying PD-1/PD-L1 Inhibitors with Surface Plasmon Resonance Technology
Published on: May 2, 2025
Therapeutic platforms for cancer management centered on blocking the PD-L1/PD-1 interaction through the use of
Abolfazl Marvizadeh1, Elham Sameiyan2, Amir Teymour Najjarkar1
1Student Research Committee, School of Pharmacy, Mashhad University of Medical Science, Mashhad, Iran.
Abstract:
Blocking the PD-1/PD-L1 (Programmed Cell Death Protein-1/Programmed Cell Death Ligand-1) pathway represents a pivotal approach in cancer immunotherapy, effectively promoting sustained antitumor immune responses while alleviating immunosuppressive mechanisms. Advancing novel technologies to enhance the efficacy of PD-1/PD-L1 blockade remains a critical focus in medical research. Nonetheless, challenges such as immune-related adverse effects, therapeutic resistance, and high treatment costs highlight the urgent need for innovative strategies that optimize clinical outcomes and accessibility. Aptamers are short, single-stranded oligonucleotides characterized by their high affinity and specificity for target molecules. Emerging as promising alternatives to traditional antibody-based therapies, they offer new avenues in cancer treatment. This review provides a comprehensive analysis of aptamer-driven strategies aimed at inhibiting the PD-1/PD-L1 immune checkpoint pathway. It summarizes recent advances in the design of PD-1/PD-L1-targeted aptamer systems and evaluates their potential to enhance therapeutic efficacy while addressing challenges related to immune resistance.
Insights
Aptamers offer a novel strategy to block the PD-1/PD-L1 pathway in cancer immunotherapy, potentially overcoming resistance and improving treatment outcomes.
Area of Science:
- Immunology
- Biotechnology
- Oncology
Background:
- The PD-1/PD-L1 pathway is a key target in cancer immunotherapy, but challenges like resistance and side effects persist.
- Novel strategies are needed to enhance the efficacy and accessibility of PD-1/PD-L1 blockade therapies.
Purpose of the Study:
- To review aptamer-based strategies for inhibiting the PD-1/PD-L1 immune checkpoint pathway.
- To evaluate the potential of aptamers in overcoming current limitations of PD-1/PD-L1 blockade.
Main Methods:
- Comprehensive literature review of aptamer design and application targeting PD-1/PD-L1.
- Analysis of recent advances in aptamer-driven cancer immunotherapy.
Main Results:
- Aptamers demonstrate high affinity and specificity for PD-1 and PD-L1, offering an alternative to antibodies.
- Aptamer-based strategies show promise in enhancing antitumor immune responses.
- Aptamers may address challenges like therapeutic resistance and treatment costs.
Conclusions:
- Aptamers represent a promising therapeutic modality for targeting the PD-1/PD-L1 pathway in cancer.
- Further research into aptamer development can optimize cancer immunotherapy and clinical outcomes.
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