ArticleCells2025
PLGA Nanoencapsulation Enhances Immunogenicity of Heat-Shocked Melanoma Tumor Cell Lysates.
Article in Cells, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
6 authors.
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Abstract
Therapeutic cancer vaccines have emerged as promising immunotherapy approaches. TRIMEL, a heat-shocked lysate derived from three melanoma cell lines, constitutes the basis of TAPCells and TRIMELVax cancer vaccines, both of which have shown clinical efficacy but face major limitations in stability and logistics due to the requirement of ultra-low temperature storage. In this study, we evaluated the encapsulation of TRIMEL into poly(lactic-co-glycolic acid) (PLGA) nanoparticles (NP-TRIMEL) as a strategy to enhance stability and preserve immunogenic function under more feasible storage conditions. NP-TRIMEL was synthesized using a double-emulsion method and characterized by hydrodynamic size, zeta potential, morphology, and TRIMEL loading. Functional assays using melanoma patient-derived monocytes and peripheral blood lymphocytes suggested that NP-TRIMEL promoted the generation of TAPCells capable of inducing cytotoxic lymphocytes against allogeneic melanoma cells, even after 24 weeks of storage at 4 °C. Remarkably, NP-TRIMEL showed a two-order-of-magnitude increase in efficiency compared to the original TRIMEL in promoting TAPCells differentiation and lymphocyte activation. These findings provide evidence that tumor cell lysates can be functionally stabilized and even potentiated through nanoencapsulation, reinforcing the concept that delivery platforms not only preserve but also enhance antigen-driven immune responses.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.