Regulation of autologous immunity to the mouse 5T4 oncofoetal antigen: implications for immunotherapy
Identifieur interne : 001179 ( Istex/Corpus ); précédent : 001178; suivant : 001180Regulation of autologous immunity to the mouse 5T4 oncofoetal antigen: implications for immunotherapy
Auteurs : Fernanda V. Castro ; Mariam Al-Muftah ; Kate Mulryan ; Hui-Rong Jiang ; Jan-Wouter Drijfhout ; Sumia Ali ; Andrzej J. Rutkowski ; Milena Kalaitsidou ; David E. Gilham ; Peter L. SternSource :
- Cancer Immunology, Immunotherapy [ 0340-7004 ] ; 2012-07-01.
English descriptors
- KwdEn :
Abstract
Abstract: Effective vaccination against tumour-associated antigens (TAA) such as the 5T4 oncofoetal glycoprotein may be limited by the nature of the T cell repertoire and the influence of immunomodulatory factors in particular T regulatory cells (Treg). Here, we identified mouse 5T4-specific T cell epitopes using a 5T4 knock out (5T4KO) mouse and evaluated corresponding wild-type (WT) responses as a model to refine and improve immunogenicity. We have shown that 5T4KO mice vaccinated by replication defective adenovirus encoding mouse 5T4 (Adm5T4) generate potent 5T4-specific IFN-γ CD8 and CD4 T cell responses which mediate significant protection against 5T4 positive tumour challenge. 5T4KO CD8 but not CD4 primed T cells also produced IL-17. By contrast, Adm5T4-immunized WT mice showed no tumour protection consistent with only low avidity CD8 IFN-γ, no IL-17 T cell responses and no detectable CD4 T cell effectors producing IFN-γ or IL-17. Treatment with anti-folate receptor 4 (FR4) antibody significantly reduced the frequency of Tregs in WT mice and enhanced 5T4-specific IFN-γ but reduced IL-10 T cell responses but did not reveal IL-17-producing effectors. This altered balance of effectors by treatment with FR4 antibody after Adm5T4 vaccination provided modest protection against autologous B16m5T4 melanoma challenge. The efficacy of 5T4 and some other TAA vaccines may be limited by the combination of TAA-specific T regs, the deletion and/or alternative differentiation of CD4 T cells as well as the absence of distinct subsets of CD8 T cells.
Url:
DOI: 10.1007/s00262-011-1167-3
Links to Exploration step
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<front><div type="abstract" xml:lang="en">Abstract: Effective vaccination against tumour-associated antigens (TAA) such as the 5T4 oncofoetal glycoprotein may be limited by the nature of the T cell repertoire and the influence of immunomodulatory factors in particular T regulatory cells (Treg). Here, we identified mouse 5T4-specific T cell epitopes using a 5T4 knock out (5T4KO) mouse and evaluated corresponding wild-type (WT) responses as a model to refine and improve immunogenicity. We have shown that 5T4KO mice vaccinated by replication defective adenovirus encoding mouse 5T4 (Adm5T4) generate potent 5T4-specific IFN-γ CD8 and CD4 T cell responses which mediate significant protection against 5T4 positive tumour challenge. 5T4KO CD8 but not CD4 primed T cells also produced IL-17. By contrast, Adm5T4-immunized WT mice showed no tumour protection consistent with only low avidity CD8 IFN-γ, no IL-17 T cell responses and no detectable CD4 T cell effectors producing IFN-γ or IL-17. Treatment with anti-folate receptor 4 (FR4) antibody significantly reduced the frequency of Tregs in WT mice and enhanced 5T4-specific IFN-γ but reduced IL-10 T cell responses but did not reveal IL-17-producing effectors. This altered balance of effectors by treatment with FR4 antibody after Adm5T4 vaccination provided modest protection against autologous B16m5T4 melanoma challenge. The efficacy of 5T4 and some other TAA vaccines may be limited by the combination of TAA-specific T regs, the deletion and/or alternative differentiation of CD4 T cells as well as the absence of distinct subsets of CD8 T cells.</div>
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<abstract>Abstract: Effective vaccination against tumour-associated antigens (TAA) such as the 5T4 oncofoetal glycoprotein may be limited by the nature of the T cell repertoire and the influence of immunomodulatory factors in particular T regulatory cells (Treg). Here, we identified mouse 5T4-specific T cell epitopes using a 5T4 knock out (5T4KO) mouse and evaluated corresponding wild-type (WT) responses as a model to refine and improve immunogenicity. We have shown that 5T4KO mice vaccinated by replication defective adenovirus encoding mouse 5T4 (Adm5T4) generate potent 5T4-specific IFN-γ CD8 and CD4 T cell responses which mediate significant protection against 5T4 positive tumour challenge. 5T4KO CD8 but not CD4 primed T cells also produced IL-17. By contrast, Adm5T4-immunized WT mice showed no tumour protection consistent with only low avidity CD8 IFN-γ, no IL-17 T cell responses and no detectable CD4 T cell effectors producing IFN-γ or IL-17. Treatment with anti-folate receptor 4 (FR4) antibody significantly reduced the frequency of Tregs in WT mice and enhanced 5T4-specific IFN-γ but reduced IL-10 T cell responses but did not reveal IL-17-producing effectors. This altered balance of effectors by treatment with FR4 antibody after Adm5T4 vaccination provided modest protection against autologous B16m5T4 melanoma challenge. The efficacy of 5T4 and some other TAA vaccines may be limited by the combination of TAA-specific T regs, the deletion and/or alternative differentiation of CD4 T cells as well as the absence of distinct subsets of CD8 T cells.</abstract>
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<surname>Ali</surname>
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<abstract xml:lang="en"><p>Abstract: Effective vaccination against tumour-associated antigens (TAA) such as the 5T4 oncofoetal glycoprotein may be limited by the nature of the T cell repertoire and the influence of immunomodulatory factors in particular T regulatory cells (Treg). Here, we identified mouse 5T4-specific T cell epitopes using a 5T4 knock out (5T4KO) mouse and evaluated corresponding wild-type (WT) responses as a model to refine and improve immunogenicity. We have shown that 5T4KO mice vaccinated by replication defective adenovirus encoding mouse 5T4 (Adm5T4) generate potent 5T4-specific IFN-γ CD8 and CD4 T cell responses which mediate significant protection against 5T4 positive tumour challenge. 5T4KO CD8 but not CD4 primed T cells also produced IL-17. By contrast, Adm5T4-immunized WT mice showed no tumour protection consistent with only low avidity CD8 IFN-γ, no IL-17 T cell responses and no detectable CD4 T cell effectors producing IFN-γ or IL-17. Treatment with anti-folate receptor 4 (FR4) antibody significantly reduced the frequency of Tregs in WT mice and enhanced 5T4-specific IFN-γ but reduced IL-10 T cell responses but did not reveal IL-17-producing effectors. This altered balance of effectors by treatment with FR4 antibody after Adm5T4 vaccination provided modest protection against autologous B16m5T4 melanoma challenge. The efficacy of 5T4 and some other TAA vaccines may be limited by the combination of TAA-specific T regs, the deletion and/or alternative differentiation of CD4 T cells as well as the absence of distinct subsets of CD8 T cells.</p>
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<item><term>5T4 oncofoetal antigen</term>
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<item><term>T cell repertoire</term>
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<item><term>T cell epitopes</term>
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<item><term>T regulatory cells</term>
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<item><term>Immunotherapy</term>
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<item><term>FR4</term>
<term>Folate Receptor 4</term>
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<item><term>TAA</term>
<term>Tumour-associated antigens</term>
</item>
<item><term>Treg</term>
<term>T regulatory cell</term>
</item>
<item><term>mAb</term>
<term>Monoclonal antibody</term>
</item>
<item><term>IL</term>
<term>Interleukin</term>
</item>
<item><term>TCR</term>
<term>T cell Receptor</term>
</item>
<item><term>sc</term>
<term>Subcutaneous</term>
</item>
<item><term>im</term>
<term>Intramuscular</term>
</item>
<item><term>iv</term>
<term>Intravenous</term>
</item>
<item><term>CTLA-4</term>
<term>CTL-associated antigen-4</term>
</item>
<item><term>GITR</term>
<term>Glucocorticoid-induced TNF receptor</term>
</item>
<item><term>MLR</term>
<term>Mixed leucocyte reaction</term>
</item>
<item><term>Tc17</term>
<term>IL-17-producing CD8 T cell</term>
</item>
<item><term>CEA</term>
<term>Carcinoembryonic antigen</term>
</item>
<item><term>IDO</term>
<term>Indoleamine 2, 3-dioxygenase</term>
</item>
<item><term>CDR</term>
<term>Complementary determining region</term>
</item>
</list>
</keywords>
</textClass>
<textClass><keywords scheme="Journal Subject"><list><head>Medicine & Public Health</head>
<item><term>Cancer Research</term>
</item>
<item><term>Oncology</term>
</item>
<item><term>Immunology</term>
</item>
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<Email>pstern@picr.man.ac.uk</Email>
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<Country Code="GB">UK</Country>
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<Country Code="GB">UK</Country>
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<Affiliation ID="Aff3"><OrgDivision>Immunohaematology and Blood Transfusion</OrgDivision>
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<Para>Effective vaccination against tumour-associated antigens (TAA) such as the 5T4 oncofoetal glycoprotein may be limited by the nature of the T cell repertoire and the influence of immunomodulatory factors in particular T regulatory cells (Treg). Here, we identified mouse 5T4-specific T cell epitopes using a 5T4 knock out (5T4KO) mouse and evaluated corresponding wild-type (WT) responses as a model to refine and improve immunogenicity. We have shown that 5T4KO mice vaccinated by replication defective adenovirus encoding mouse 5T4 (Adm5T4) generate potent 5T4-specific IFN-γ CD8 and CD4 T cell responses which mediate significant protection against 5T4 positive tumour challenge. 5T4KO CD8 but not CD4 primed T cells also produced IL-17. By contrast, Adm5T4-immunized WT mice showed no tumour protection consistent with only low avidity CD8 IFN-γ, no IL-17 T cell responses and no detectable CD4 T cell effectors producing IFN-γ or IL-17. Treatment with anti-folate receptor 4 (FR4) antibody significantly reduced the frequency of Tregs in WT mice and enhanced 5T4-specific IFN-γ but reduced IL-10 T cell responses but did not reveal IL-17-producing effectors. This altered balance of effectors by treatment with FR4 antibody after Adm5T4 vaccination provided modest protection against autologous B16m5T4 melanoma challenge. The efficacy of 5T4 and some other TAA vaccines may be limited by the combination of TAA-specific T regs, the deletion and/or alternative differentiation of CD4 T cells as well as the absence of distinct subsets of CD8 T cells.</Para>
</Abstract>
<KeywordGroup Language="En" OutputMedium="All"><Heading>Keywords</Heading>
<Keyword>5T4 oncofoetal antigen</Keyword>
<Keyword>T cell repertoire</Keyword>
<Keyword>T cell epitopes</Keyword>
<Keyword>T regulatory cells</Keyword>
<Keyword>Vaccine</Keyword>
<Keyword>Immunotherapy</Keyword>
</KeywordGroup>
<AbbreviationGroup><Heading>Abbreviations</Heading>
<DefinitionList><DefinitionListEntry><Term>FR4</Term>
<Description><Para>Folate Receptor 4</Para>
</Description>
</DefinitionListEntry>
<DefinitionListEntry><Term>TAA</Term>
<Description><Para>Tumour-associated antigens</Para>
</Description>
</DefinitionListEntry>
<DefinitionListEntry><Term>Treg</Term>
<Description><Para>T regulatory cell</Para>
</Description>
</DefinitionListEntry>
<DefinitionListEntry><Term>mAb</Term>
<Description><Para>Monoclonal antibody</Para>
</Description>
</DefinitionListEntry>
<DefinitionListEntry><Term>IL</Term>
<Description><Para>Interleukin</Para>
</Description>
</DefinitionListEntry>
<DefinitionListEntry><Term>TCR</Term>
<Description><Para>T cell Receptor</Para>
</Description>
</DefinitionListEntry>
<DefinitionListEntry><Term>sc</Term>
<Description><Para>Subcutaneous</Para>
</Description>
</DefinitionListEntry>
<DefinitionListEntry><Term>im</Term>
<Description><Para>Intramuscular</Para>
</Description>
</DefinitionListEntry>
<DefinitionListEntry><Term>iv</Term>
<Description><Para>Intravenous</Para>
</Description>
</DefinitionListEntry>
<DefinitionListEntry><Term>CTLA-4</Term>
<Description><Para>CTL-associated antigen-4</Para>
</Description>
</DefinitionListEntry>
<DefinitionListEntry><Term>GITR</Term>
<Description><Para>Glucocorticoid-induced TNF receptor</Para>
</Description>
</DefinitionListEntry>
<DefinitionListEntry><Term>MLR</Term>
<Description><Para>Mixed leucocyte reaction</Para>
</Description>
</DefinitionListEntry>
<DefinitionListEntry><Term>Tc17</Term>
<Description><Para>IL-17-producing CD8 T cell</Para>
</Description>
</DefinitionListEntry>
<DefinitionListEntry><Term>CEA</Term>
<Description><Para>Carcinoembryonic antigen</Para>
</Description>
</DefinitionListEntry>
<DefinitionListEntry><Term>IDO</Term>
<Description><Para>Indoleamine 2, 3-dioxygenase</Para>
</Description>
</DefinitionListEntry>
<DefinitionListEntry><Term>CDR</Term>
<Description><Para>Complementary determining region</Para>
</Description>
</DefinitionListEntry>
</DefinitionList>
</AbbreviationGroup>
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<abstract lang="en">Abstract: Effective vaccination against tumour-associated antigens (TAA) such as the 5T4 oncofoetal glycoprotein may be limited by the nature of the T cell repertoire and the influence of immunomodulatory factors in particular T regulatory cells (Treg). Here, we identified mouse 5T4-specific T cell epitopes using a 5T4 knock out (5T4KO) mouse and evaluated corresponding wild-type (WT) responses as a model to refine and improve immunogenicity. We have shown that 5T4KO mice vaccinated by replication defective adenovirus encoding mouse 5T4 (Adm5T4) generate potent 5T4-specific IFN-γ CD8 and CD4 T cell responses which mediate significant protection against 5T4 positive tumour challenge. 5T4KO CD8 but not CD4 primed T cells also produced IL-17. By contrast, Adm5T4-immunized WT mice showed no tumour protection consistent with only low avidity CD8 IFN-γ, no IL-17 T cell responses and no detectable CD4 T cell effectors producing IFN-γ or IL-17. Treatment with anti-folate receptor 4 (FR4) antibody significantly reduced the frequency of Tregs in WT mice and enhanced 5T4-specific IFN-γ but reduced IL-10 T cell responses but did not reveal IL-17-producing effectors. This altered balance of effectors by treatment with FR4 antibody after Adm5T4 vaccination provided modest protection against autologous B16m5T4 melanoma challenge. The efficacy of 5T4 and some other TAA vaccines may be limited by the combination of TAA-specific T regs, the deletion and/or alternative differentiation of CD4 T cells as well as the absence of distinct subsets of CD8 T cells.</abstract>
<note>Original Article</note>
<subject lang="en"><genre>Keywords</genre>
<topic>5T4 oncofoetal antigen</topic>
<topic>T cell repertoire</topic>
<topic>T cell epitopes</topic>
<topic>T regulatory cells</topic>
<topic>Vaccine</topic>
<topic>Immunotherapy</topic>
</subject>
<subject><genre>Abbreviations</genre>
<topic>FR4 : Folate Receptor 4</topic>
<topic>TAA : Tumour-associated antigens</topic>
<topic>Treg : T regulatory cell</topic>
<topic>mAb : Monoclonal antibody</topic>
<topic>IL : Interleukin</topic>
<topic>TCR : T cell Receptor</topic>
<topic>sc : Subcutaneous</topic>
<topic>im : Intramuscular</topic>
<topic>iv : Intravenous</topic>
<topic>CTLA-4 : CTL-associated antigen-4</topic>
<topic>GITR : Glucocorticoid-induced TNF receptor</topic>
<topic>MLR : Mixed leucocyte reaction</topic>
<topic>Tc17 : IL-17-producing CD8 T cell</topic>
<topic>CEA : Carcinoembryonic antigen</topic>
<topic>IDO : Indoleamine 2, 3-dioxygenase</topic>
<topic>CDR : Complementary determining region</topic>
</subject>
<relatedItem type="host"><titleInfo><title>Cancer Immunology, Immunotherapy</title>
</titleInfo>
<titleInfo type="abbreviated"><title>Cancer Immunol Immunother</title>
</titleInfo>
<genre type="journal" authority="ISTEX" authorityURI="https://publication-type.data.istex.fr" valueURI="https://publication-type.data.istex.fr/ark:/67375/JMC-0GLKJH51-B">journal</genre>
<originInfo><publisher>Springer</publisher>
<dateIssued encoding="w3cdtf">2012-06-20</dateIssued>
<copyrightDate encoding="w3cdtf">2012</copyrightDate>
</originInfo>
<subject><genre>Medicine & Public Health</genre>
<topic>Cancer Research</topic>
<topic>Oncology</topic>
<topic>Immunology</topic>
</subject>
<identifier type="ISSN">0340-7004</identifier>
<identifier type="eISSN">1432-0851</identifier>
<identifier type="JournalID">262</identifier>
<identifier type="IssueArticleCount">18</identifier>
<identifier type="VolumeIssueCount">12</identifier>
<part><date>2012</date>
<detail type="volume"><number>61</number>
<caption>vol.</caption>
</detail>
<detail type="issue"><number>7</number>
<caption>no.</caption>
</detail>
<extent unit="pages"><start>1005</start>
<end>1018</end>
</extent>
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<recordInfo><recordOrigin>Springer-Verlag, 2012</recordOrigin>
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<identifier type="ark">ark:/67375/VQC-0FSHMH9T-6</identifier>
<identifier type="DOI">10.1007/s00262-011-1167-3</identifier>
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<identifier type="ArticleID">s00262-011-1167-3</identifier>
<accessCondition type="use and reproduction" contentType="copyright">Springer-Verlag, 2011</accessCondition>
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