Bi-Functional Topospecific Nanoparticles to Promote Immune-Tumor Cell Engagement as A New Immunotherapeutic Strategy

© 2025 The Author(s). Advanced Materials published by Wiley‐VCH GmbH.

Détails bibliographiques
Publié dans:Advanced materials (Deerfield Beach, Fla.). - 1998. - (2025) vom: 24. Sept., Seite e18838
Auteur principal: Ortuño-Bernal, Alba (Auteur)
Autres auteurs: Clara-Trujillo, Sandra, Lucena-Sánchez, Elena, Hicke, Francisco J, Escudero, Andrea, Pradana-López, Sandra, Jiménez-Alduan, Nelia, Díez, Paula, García-Fernández, Alba, Martínez-Máñez, Ramón
Format: Article en ligne
Langue:English
Publié: 2025
Accès à la collection:Advanced materials (Deerfield Beach, Fla.)
Sujets:Journal Article PD‐1 communication immunotherapy nanoparticles pHLIP
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520 |a Cancer immunotherapy has emerged as a promising alternative approach, enabling the body's immune system to fight cancer. Cytotoxic T cells play a pivotal role in recognizing and eliminating tumor cells, and their effectiveness relies on establishing a physical interaction and efficient communication with cancer cells. However, this communication is often disrupted by immune escape mechanisms, allowing cancer progression. A versatile nanoplatform is developed to restore cellular connection using Janus mesoporous silica-Au nanoparticle (J-pHLIP-PD1), including specific binding sites on opposite faces for simultaneous binding to cancer cells and immune cells. The two differential surfaces on the nanoparticle allow orthogonal functionalization with the anti-PD-1 antibody that interacts with the PD-1 receptor in cytotoxic T cells on the gold face and the pH Low Insertion Peptide (pHLIP), which undergoes specific insertion into the tumor cell membrane on the silica face. J-pHLIP-PD1 nanoparticles effectively bind the surface of tumor cells and capture T cells, facilitating the formation of immune synapse-like structures that lead to reduced cancer cell viability in vitro, associated with immunogenic cell death signatures. The therapeutic potential of J-pHLIP-PD1 is also demonstrated in an in vivo metastatic melanoma model, where treatment with J-pHLIP-PD1 produces a significant decrease in metastatic burden and increases T cell presence. The Janus nanosystem represents an attractive platform that expands the toolbox of immune-engaging strategies, offering a flexible alternative to conventional immunotherapies that link immune and tumor cells, restoring cell-cell communication for cancer elimination 
650 4 |a Journal Article 
650 4 |a PD‐1 
650 4 |a communication 
650 4 |a immunotherapy 
650 4 |a nanoparticles 
650 4 |a pHLIP 
700 1 |a Clara-Trujillo, Sandra  |e verfasserin  |4 aut 
700 1 |a Lucena-Sánchez, Elena  |e verfasserin  |4 aut 
700 1 |a Hicke, Francisco J  |e verfasserin  |4 aut 
700 1 |a Escudero, Andrea  |e verfasserin  |4 aut 
700 1 |a Pradana-López, Sandra  |e verfasserin  |4 aut 
700 1 |a Jiménez-Alduan, Nelia  |e verfasserin  |4 aut 
700 1 |a Díez, Paula  |e verfasserin  |4 aut 
700 1 |a García-Fernández, Alba  |e verfasserin  |4 aut 
700 1 |a Martínez-Máñez, Ramón  |e verfasserin  |4 aut 
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773 1 8 |g year:2025  |g day:24  |g month:09  |g pages:e18838 
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