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Overcoming Resistance to Immune Checkpoint Blockade: Mechanistic Insights and Emerging Therapeutic Directions | ||
| Iranian Journal of Immunology | ||
| دوره 23، شماره 3، آذر 2026، صفحه 1-1 | ||
| نوع مقاله: Review Article | ||
| شناسه دیجیتال (DOI): 10.22034/iji.2026.111387.3205 | ||
| نویسندگان | ||
| Yuyu Xu؛ Huiling Shen* | ||
| Department of Oncology, Jiangsu University Affiliated People's Hospital, Zhenjiang, 212004, China. | ||
| چکیده | ||
| Immune checkpoint inhibitors have revolutionized cancer therapy by delivering long-lasting responses in a subset of patients across many cancer types. Yet, their effectiveness is often limited by high rates of primary and acquired resistance. This resistance is driven by complex interactions among tumor-intrinsic alterations, immunosuppressive factors within the tumor microenvironment, and host-related determinants. This review critically examines the biological mechanisms underlying resistance to immune checkpoint inhibitors, including defects in antigen presentation, dysregulated interferon signaling, activation of oncogenic pathways, compensatory upregulation of alternative immune checkpoints, and microbiome-associated immune modulation. In addition to defining these challenges, this review also highlights emerging opportunities for overcoming these obstacles. Emerging opportunities to circumvent resistance include biomarker-guided patient stratification, rational combination therapies that engage complementary immune pathways, modulation of the tumor microenvironment, and integration of multi-omics approaches to identify predictive resistance signatures. The central conclusion of this review is that effective clinical translation will necessitate a paradigm shift from discrete pathway inhibition toward integrated precision immuno-oncology strategies that combine molecular profiling, immune-contexture analysis, and mechanism-based combination therapies. Such integrated approaches may improve patient selection, overcome resistance, and expand the proportion of patients who achieve durable responses to immune checkpoint blockade. | ||
| کلیدواژهها | ||
| Cancer؛ Immune checkpoints؛ Immunotherapy؛ Monoclonal antibodies | ||
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آمار تعداد مشاهده مقاله: 10 |
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