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PMID |
Sentence |
1 |
10214692
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For example, proteinases expressed by the various stages of the schistosome life-cycle, in particular the well-characterized cercarial elastase which is involved in the penetration of the host skin and the variety of proteinases, such as cathepsin B (Sm31), cathepsin L1, cathepsin L2, cathepsin D, cathepsin C and legumain (Sm32), which are believed to be involved in the catabolism of host haemoglobin.
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2 |
16862213
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In fact, a legumain-based DNA vaccine served as a tool to prove this point, as it induced a robust CD8+ T cell response against TAMs, which dramatically reduced their density in tumor tissues and resulted in a marked decrease in proangiogenic factors released by TAMs such as TGF-beta, TNF-alpha, MMP-9, and VEGF.
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3 |
17786443
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Here, we tested our hypothesis that suppression of TAMs can be achieved in syngeneic BALB/c mice with oral minigene vaccines against murine MHC class I antigen epitopes of Legumain, an asparaginyl endopeptidase and a member of the C13 family of cystine proteases which is overexpressed on TAMs in the tumor stroma.
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4 |
17786443
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We demonstrated that the Legumain minigene vaccine provided effective protection against tumor cell challenge by inducing a specific CD8+ T-cell response against Legumain+ TAMs in our breast tumor model.
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5 |
17786443
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Here, we tested our hypothesis that suppression of TAMs can be achieved in syngeneic BALB/c mice with oral minigene vaccines against murine MHC class I antigen epitopes of Legumain, an asparaginyl endopeptidase and a member of the C13 family of cystine proteases which is overexpressed on TAMs in the tumor stroma.
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6 |
17786443
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We demonstrated that the Legumain minigene vaccine provided effective protection against tumor cell challenge by inducing a specific CD8+ T-cell response against Legumain+ TAMs in our breast tumor model.
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7 |
18363997
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Vaccines are delivered by attenuated Salmonella typhimurium to secondary lymphoid organs and respectively target vascular endothelial growth factor receptor-2, transcription factor Fos-related antigen-1, anti-apoptosis protein survivin and Legumain, an asparaginyl endopeptidase specifically overexpressed on tumor-associated macrophages (TAMs) in the tumor microenvironment (TME).
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8 |
23577091
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Furthermore, splenocytes co-cultured them with 4T1 cells pre-stimulated with CoCl2, which influenced the translocation of legumain from cytoplasm to plasma membrane, showed a 4.7 and 2.3 folds increase in active cytotoxic T lymphocytes (CD3(+)/CD8(+)/CD25(+)) when treated with A.C.NPs carriers compared with PBS C.NPs.
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9 |
24728077
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PD-1/B7-H1 is an important inhibitory axis in the tumor microenvironment.
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10 |
24728077
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We observed that using anti-PD-1 antibody and a multipeptide vaccine (consisting of immunogenic peptides derived from breast cancer antigens, neu, legumain, and β-catenin) as a combination therapy regimen for the treatment of breast cancer-bearing mice prolonged the vaccine-induced progression-free survival period.
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11 |
24728077
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This prolonged survival was associated with increase in number of Tc1 and Tc2 CD8 T cells with memory precursor phenotype, CD27+IL-7RhiT-betlo, and decrease in number of PD-1+ dendritic cells (DC) in regressing tumors and enhanced antigen reactivity of tumor-infiltrating CD8 T cells.
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12 |
24728077
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It was also observed that blockade of PD-1 on tumor DCs enhanced IL-7R expression on CD8 T cells.
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13 |
24728077
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Taken together, our results suggest that PD-1 blockade enhances breast cancer vaccine efficacy by altering both CD8 T cell and DC components of the tumor microenvironment.
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14 |
24810641
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Then, as tolerance to self-antigens can be broken by the activation of CD4 T-cell help, we tried to enhance the immunogenicity of legumain by the insertion of a foreign helper epitope, namely the p30 epitope from the tetanus toxin.
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15 |
24810641
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The addition of the p30 helper epitope induced the specific production of IFN-γ by T cells, but did not significantly increase legumain-specific immunity activated after mutagenesis in the RGD motif which might be caused by simultaneous activation of a Th2 response demonstrated by the production of IL-4.
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16 |
24810641
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However, the beneficial effect of the helper epitope on legumain-specific response was proved after the depletion of regulatory T cells by antibody against CD25 that preferentially stimulated Th1 immunity.
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17 |
24810641
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Then, as tolerance to self-antigens can be broken by the activation of CD4 T-cell help, we tried to enhance the immunogenicity of legumain by the insertion of a foreign helper epitope, namely the p30 epitope from the tetanus toxin.
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18 |
24810641
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The addition of the p30 helper epitope induced the specific production of IFN-γ by T cells, but did not significantly increase legumain-specific immunity activated after mutagenesis in the RGD motif which might be caused by simultaneous activation of a Th2 response demonstrated by the production of IL-4.
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19 |
24810641
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However, the beneficial effect of the helper epitope on legumain-specific response was proved after the depletion of regulatory T cells by antibody against CD25 that preferentially stimulated Th1 immunity.
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20 |
24810641
|
Then, as tolerance to self-antigens can be broken by the activation of CD4 T-cell help, we tried to enhance the immunogenicity of legumain by the insertion of a foreign helper epitope, namely the p30 epitope from the tetanus toxin.
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21 |
24810641
|
The addition of the p30 helper epitope induced the specific production of IFN-γ by T cells, but did not significantly increase legumain-specific immunity activated after mutagenesis in the RGD motif which might be caused by simultaneous activation of a Th2 response demonstrated by the production of IL-4.
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22 |
24810641
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However, the beneficial effect of the helper epitope on legumain-specific response was proved after the depletion of regulatory T cells by antibody against CD25 that preferentially stimulated Th1 immunity.
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