Your browser doesn't support javascript.
loading
Genetic fusion of CCL11 to antigens enhances antigenicity in nucleic acid vaccines and eradicates tumor mass through optimizing T-cell response.
Qi, Hailong; Sun, Zhongjie; Gao, Tianle; Yao, Yanling; Wang, Yu; Li, Weiwei; Wang, Xudong; Wang, Xiaofang; Liu, Defang; Jiang, Jian-Dong.
Afiliação
  • Qi H; Institute of Medicinal Biotechnology, Chinese Academy of Medical Science, Beijing, China. qihailong3@126.com.
  • Sun Z; Newish Biological R&D Center, Wuxi, China. qihailong3@126.com.
  • Gao T; State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China.
  • Yao Y; Newish Biological R&D Center, Wuxi, China.
  • Wang Y; Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
  • Li W; Newish Biological R&D Center, Wuxi, China.
  • Wang X; Institute of Medicinal Biotechnology, Chinese Academy of Medical Science, Beijing, China.
  • Wang X; Newish Biological R&D Center, Wuxi, China.
  • Liu D; Newish Biological R&D Center, Wuxi, China.
  • Jiang JD; Newish Biological R&D Center, Wuxi, China.
Mol Cancer ; 23(1): 46, 2024 03 08.
Article em En | MEDLINE | ID: mdl-38459592
ABSTRACT
Nucleic acid vaccines have shown promising potency and efficacy for cancer treatment with robust and specific T-cell responses. Improving the immunogenicity of delivered antigens helps to extend therapeutic efficacy and reduce dose-dependent toxicity. Here, we systematically evaluated chemokine-fused HPV16 E6/E7 antigen to improve the cellular and humoral immune responses induced by nucleotide vaccines in vivo. We found that fusion with different chemokines shifted the nature of the immune response against the antigens. Although a number of chemokines were able to amplify specific CD8 + T-cell or humoral response alone or simultaneously. CCL11 was identified as the most potent chemokine in improving immunogenicity, promoting specific CD8 + T-cell stemness and generating tumor rejection. Fusing CCL11 with E6/E7 antigen as a therapeutic DNA vaccine significantly improved treatment effectiveness and caused eradication of established large tumors in 92% tumor-bearing mice (n = 25). Fusion antigens with CCL11 expanded the TCR diversity of specific T cells and induced the infiltration of activated specific T cells, neutrophils, macrophages and dendritic cells (DCs) into the tumor, which created a comprehensive immune microenvironment lethal to tumor. Combination of the DNA vaccine with anti-CTLA4 treatment further enhanced the therapeutic effect. In addition, CCL11 could also be used for mRNA vaccine design. To summarize, CCL11 might be a potent T cell enhancer against cancer.
Assuntos
Palavras-chave

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Proteínas Oncogênicas Virais / Vacinas Anticâncer / Vacinas de DNA / Vacinas contra Papillomavirus / Neoplasias Limite: Animals Idioma: En Revista: Mol Cancer Assunto da revista: NEOPLASIAS Ano de publicação: 2024 Tipo de documento: Article País de afiliação: China

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Proteínas Oncogênicas Virais / Vacinas Anticâncer / Vacinas de DNA / Vacinas contra Papillomavirus / Neoplasias Limite: Animals Idioma: En Revista: Mol Cancer Assunto da revista: NEOPLASIAS Ano de publicação: 2024 Tipo de documento: Article País de afiliação: China