Journal Article DKFZ-2025-01472

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Neo-antigen tumor vaccination depends on CD4-licensing conveyed by adeno-associated virus like particles.

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2025
Elsevier Amsterdam

Molecular therapy nn, nn () [10.1016/j.ymthe.2025.07.014]
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Abstract: Personalized treatment has become a realistic option for tumor patients, accelerated by significantly reduced sequencing costs of tumor genomes and advances in vaccine formulations. The druggability of cancer neo-antigens caused by individual mutations is centered in this effort. We here use an AAV-based VLP platform to compose a neo-antigen specific protein vaccine that is effective in a murine prevention and treatment setting. Furthermore, we show that CD4+ T cell responses that are provided by the AAV capsid are crucial for an effective murine melanoma treatment. To uncover the optimal composition of a peptide vaccine we de-linked MHC-II helper peptides from the capsid and formulated an efficient neo-antigen specific vaccine, which showed the independence of CD4+ T cell response from tumor sequences. The findings are supported by clinical data of neo-antigen vaccinated tumor patients. Our results punctuate on the significance of MHC-II epitopes for CD8+ T cell responses and suggest a future use of AAVLPs as neo-epitope vaccines in personalized cancer treatments.

Classification:

Note: #EA:D120#LA:D210# / epub

Contributing Institute(s):
  1. Angewandte Tumor-Immunität (D120)
  2. GMP-Einheit Zelluläre Therapie (D210)
Research Program(s):
  1. 314 - Immunologie und Krebs (POF4-314) (POF4-314)

Appears in the scientific report 2025
Database coverage:
Medline ; BIOSIS Previews ; Biological Abstracts ; Clarivate Analytics Master Journal List ; Current Contents - Life Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 10 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection
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 Record created 2025-07-21, last modified 2025-07-27



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