A novel anti-CTLA-4 nanobody-IL12 fusion protein in combination with a dendritic cell/tumour fusion cell vaccine enhances the antitumour activity of CD8+ T cells in solid tumours

Autor: Meng-jie Jiang, Hao-peng Cui, Ting-ting Li, Xiao-mei Yang, Xiao-ling Lu, Ai-qun Liu
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Journal of Nanobiotechnology, Vol 22, Iss 1, Pp 1-10 (2024)
Druh dokumentu: article
ISSN: 1477-3155
DOI: 10.1186/s12951-024-02914-6
Popis: Abstract Background We previously developed a nanobody targeting CTLA-4 and demonstrated that it can boost antitumour T-cell responses in vitro; however, the resulting responses after the injection of T cells into cancer models are usually weak and transient. Here, we explored whether fusing our nanobody to IL-12 would enable it to induce stronger, longer-lasting T-cell immune responses after exposure to immature dendritic cell and tumour cell fusions. Results The fusion protein enhanced the response of CD8+ T cells to tumour antigens in vitro and led to stronger, more persistent immune responses after the T cells were injected into mice bearing different types of xenografts. Conclusion Our in vitro and in vivo results suggest the anticancer potential of our nanobody-interleukin fusion system and support the clinical application of this fusion approach for various nanobodies.
Databáze: Directory of Open Access Journals
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