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An Advanced Intrahepatic Cholangiocarcinoma Patient Benefits from Personalized Immunotherapy.
Inflammation 2024 March 17
Advanced intrahepatic cholangiocarcinoma (ICC) is a highly aggressive malignancy characterized by limited response to standard therapeutic modalities, such as radiotherapy, chemotherapy, and targeted therapy. The prognosis for patients with advanced ICC is exceedingly bleak, with an overall survival of less than 1 year. In recent years, personalized neoantigen vaccines have emerged as a promising approach to augment the immune response against tumors. Clinical investigations are currently underway to evaluate the efficacy of neoantigen-based peptide, DNA, and dendritic cell vaccines. Herein, we present a noteworthy case of advanced ICC patients who experienced disease progression following relapse and subsequently received immunotherapy with a personalized neoantigen nanovaccine. This innovative treatment strategy involved the administration of a custom-designed neoantigen-based peptide nanovaccine tailored to the patient's specific gene mutation profile subsequent to failure of first-line therapy. The clinical efficacy and anti-tumor immune responses were evaluated using various methods, including imaging, interferon-γ ELISPOT assay, and intracellular cytokine staining. Notably, the neoantigen nanovaccine elicited a robust and specific tumor-killing effect mediated by T cells, resulting in a durable response lasting up to 25 months. These findings highlight the potential of neoantigen-based immunotherapy as a novel therapeutic avenue for the management of advanced ICC.
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