| Autor: |
Xuan Pan, Bowei Ma, Xinchao You, Shu Chen, Jialing Wu, Tianfang Wang, Shelley F. Walton, Jianwei Yuan, Xiaolian Wu, Guoqiang Chen, Yuejian Wang, Guoying Ni, Xiaosong Liu |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
BMC Complementary and Alternative Medicine, Vol 19, Iss 1, Pp 1-13 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
1472-6882 |
| DOI: |
10.1186/s12906-019-2571-z |
| Popis: |
Abstract Background Therapeutic vaccines against cervical cancer remain ineffective. Previously, we demonstrated that blocking the signalling of a cytokine, interleukin 10, at the time of immunisation elicited significantly higher numbers of antigen specific T cells and inhibited tumour growth in mice. Results In the current paper, we demonstrate, in a HPV16 E6/E7 transformed TC-1 tumour mouse model, that despite increased antigen specific T cell numbers, blocking IL-10 signalling at the time of immunisation does not increase the survival time of the TC-1 tumour bearing mice compared to mice receiving the same immunisation with no IL-10 signalling blockade. Moreover, the function of tumour infiltrating T cells isolated 3 weeks post TC-1 transplantation is more suppressed than those isolated 2 weeks after tumour inoculation. We demonstrate that synthesized caerin peptides, derived from amphibian skin secretions, 1) were able to inhibit TC-1 tumour growth both in vitro and in vivo; 2) are environmentally stable; and 3) promote the secretion of pro-inflammatory interlukine-6 by TC-1 cells. Notably caerin peptides were able to increase the survival time of TC-1 tumour bearing mice after therapeutic vaccination with a HPV16E7 peptide-based vaccine containing IL-10 inhibitor, via recruiting increased levels of T cells to the tumour site. Conclusion Caerin peptides increase the efficacy of a therapeutic vaccine by recruiting more T cells to the tumour site. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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