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|Title:||A new strategy to induce effective antitumour response in vitro and in vivo||Authors:||Wang, M.
|Issue Date:||Sep-2008||Citation:||Wang, M., Xie, Z., Shi, M., Lu, H., Yu, M., Hu, M., Lu, F., Ma, Y., Shen, B., Guo, N. (2008-09). A new strategy to induce effective antitumour response in vitro and in vivo. Scandinavian Journal of Immunology 68 (3) : 287-296. ScholarBank@NUS Repository. https://doi.org/10.1111/j.1365-3083.2008.02140.x||Abstract:||To induce Her2-specific cell immune response, we used xenogeneic antigen rat neu L2-S2 domains as the vaccine antigen. The antigenic protein was engineered as a chimeric protein with human IgG1 Fc region (neu-Fc). Neu-Fc could stimulate the cell proliferation in mixed lymphocyte reaction effectively. Simultaneous neu-Fc and IFN-γ stimulation dramatically elevated IL-12 secretion and reduced IL-10 production in PBMC. To further augment the activating effects on Th1-type response, Bacille Calmette-Guerin (BCG) was utilized as a non-specific stimulus. Neu-Fc, IFN-γ and BCG costimulation exhibited the most conspicuous effects on the reversal of the Th1-type inhibitory effects by MCF-7 cell supernatant compared with neu-Fc alone or IFN-γ and BCG costimulation. The lytic activity of effector cells to Her2 overexpressing cells was greatly promoted by neu-Fc, IFN-γ and BCG stimulation simultaneously. Neu-Fc led to considerable retardation in EMT6/Her2 tumour growth in Balb/c mice. IFN-γ and BCG efficiently enhanced the antitumour activity. A large amount of inflammatory cells were found to be accumulated in the tumour tissues or surrounded tumours in mice treated with neu-Fc, IFN-γ and BCG but no inflammatory cell infiltration was observed in control tumours, indicating that the strategy is potent enough to support the initiation and propagation of tumour-specific immune response in an established tumour and generate a proinflammatory environment. © 2008 The Authors.||Source Title:||Scandinavian Journal of Immunology||URI:||http://scholarbank.nus.edu.sg/handle/10635/109146||ISSN:||03009475||DOI:||10.1111/j.1365-3083.2008.02140.x|
|Appears in Collections:||Staff Publications|
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