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PMID |
Sentence |
1 |
3291452
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Salmonella typhimurium SR-11 strains lacking adenylate cyclase and the cyclic AMP receptor protein (CRP) due to deletion (delta) mutations in the cya and crp genes, respectively, are avirulent for mice and induce high level protective immunity against subsequent challenge with wild-type virulent S. typhimurium SR-11 cells.
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2 |
3778659
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The hysteretic effect of Gpp(NH)p on adenylate cyclase is not altered by Mg2+ in adipocyte membranes of ob/ob mice.
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3 |
3778659
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The activation of adenylate cyclase by Gpp(NH)p in adipocyte membranes of normal (+/+) and ob/ob mice proceeds with a lag phase.
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4 |
3778659
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The hysteretic effect of Gpp(NH)p on adenylate cyclase is not altered by Mg2+ in adipocyte membranes of ob/ob mice.
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5 |
3778659
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The activation of adenylate cyclase by Gpp(NH)p in adipocyte membranes of normal (+/+) and ob/ob mice proceeds with a lag phase.
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6 |
6199210
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DNA content changes following stimulation with anti-mu, anti-mu plus BCGF, and SAC were also measured using propidium iodide staining and flow cytometry.
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7 |
6199210
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Optimal concentrations of anti-mu induced 20% of the resting B cells to enter S phase, while optimal concentrations of anti-mu plus BCGF or SAC induced approximately 40%.
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8 |
6199210
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DNA content changes following stimulation with anti-mu, anti-mu plus BCGF, and SAC were also measured using propidium iodide staining and flow cytometry.
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9 |
6199210
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Optimal concentrations of anti-mu induced 20% of the resting B cells to enter S phase, while optimal concentrations of anti-mu plus BCGF or SAC induced approximately 40%.
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10 |
6350297
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The protein toxin present in Bordetella pertussis vaccine blocks the inhibition of adenylate cyclase by prostaglandins and adenosine which may be secondary to ADP-ribosylation of an inhibitory guanine nucleotide-binding protein.
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11 |
6350297
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These data indicate that pertussis toxin selectively interferes with inhibition of cyclic AMP accumulation in rat adipocytes by adenosine, potentiates the increases in cyclic AMP due to catecholamines, increases the stimulatory effects of insulin on adipocyte metabolism, and interferes with alpha 1-catecholamine stimulation of phosphatidylinositol turnover.
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12 |
7549983
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A single-step chromatography on Matrex-Gel Blue A has been employed to obtain soluble extracts containing some of the most important antigens of Bordetella pertussis, pertussis toxin (PT), filamentous hemagglutinin (FHA), pertactin (69-kDa outer membrane protein), fimbriae (FIM2 and FIM3) and adenylate cyclase (AC).
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13 |
9916092
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While much is known about the mechanism of CT stimulation of adenylate cyclase, the toxin's activation of phospholipase A2, which results in increased hydrolysis of AA from membrane phospholipids, is not well understood.
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14 |
10858196
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Induction of a polarized Th1 response by insertion of multiple copies of a viral T-cell epitope into adenylate cyclase of Bordetella pertussis.
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15 |
10858196
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Here, we evaluated the capacity of CyaA carrying one to four copies of the CD8(+) CD4(+) T-cell epitope from the nucleoprotein of the lymphocytic choriomeningitis virus to induce T-cell responses.
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16 |
11462005
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This property has been exploited to design recombinant CyaA toxoids capable of delivering major histocompatibility complex (MHC) class I-restricted CD8(+) T-cell epitopes into antigen-presenting cells and to induce specific CD8(+) cytotoxic T-lymphocyte (CTL) responses in vivo.
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17 |
11462005
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These results highlight the potency of the adenylate cyclase vector for induction of protective CTL responses with multiple specificity and/or broad MHC restriction.
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18 |
12385027
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In vivo receptor-mediated delivery of a recombinant invasive bacterial toxoid to CD11c + CD8 alpha -CD11bhigh dendritic cells.
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19 |
12385027
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Here we show that CyaA, the adenylate cyclase toxin of Bordetella pertussis, an invasive bacterial toxin that binds cells through CD11b/CD18 can be exploited for the targeted delivery of an exogenous peptide to the CD8 alpha -CD11bhigh subset in vivo.
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20 |
12385027
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Antigen (Ag) genetically inserted in the N-terminal domain of mutant CyaA devoid of catalytic activity, are targeted to CD8 alpha -CD11bhigh DC by the CD11b/CD18-dependent binding of CyaA to the cell surface.
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21 |
12385027
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As a result, CTL are primed after a single injection, bypassing requirement for adjuvant, CD4+ T cell help and CD40 signaling.
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22 |
12385027
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Beside the interest of the CyaA vector for vaccine development, these results show that Ag presentation focused on CD8 alpha -CD11bhigh DC in vivo is sufficient for eliciting a vigorous CTL response and that CD11b/CD18 could be a suitable surface molecule for targeting Ag to DC.
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23 |
15207780
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Vaccination with OVA-CT-pulsed DC concurrently induced strong CTL in vitro activity and anti-E.G7 tumor protection in vivo in WT, NK-depleted and CD4-deficient mice as well as in IL-12-/- and IFN-gamma-/- mice but not in CD8-deficient mice.
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24 |
15207780
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Importantly, activation of CTL by OVA-CT-pulsed DC was dependent on CT-induced activation of adenylate cyclase and increased cAMP production by DC associated with increased expression of MHC class I and co-stimulatory molecules (CD80, CD86 and CD40).
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25 |
15528345
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Antigen targeting to CD11b allows efficient presentation of CD4+ and CD8+ T cell epitopes and in vivo Th1-polarized T cell priming.
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26 |
15528345
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Bordetella pertussis adenylate cyclase (CyaA) is an invasive bacterial toxin that delivers its N-terminal catalytic domain into the cytosol of eukaryotic cells bearing the alpha(M)beta(2) integrin (CD11b/CD18), such as myeloid dendritic cells.
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27 |
15528345
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In this study, we demonstrate that CyaA can efficiently codeliver both a CD8(+) T cell epitope (OVA(257-264)) and a CD4(+) T cell epitope (MalE(100-114)) into, respectively, the conventional cytosolic or endocytic routes of processing of murine bone marrow-derived dendritic cells.
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28 |
15528345
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Upon CyaA delivery, a strong potentiation of the MalE(100-114) CD4(+) T cell epitope presentation is observed as compared with the MalE protein, which depends on CyaA interaction with its CD11b receptor and its subsequent clathrin-mediated endocytosis.
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29 |
15528345
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In vivo, CyaA induces strong and specific Th1 CD4(+) and CD8(+) T cell responses against, respectively, the MalE(100-114) and OVA(257-264) epitopes.
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30 |
15542180
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Bordetella pertussis adenylate cyclase delivers chemically coupled CD8+ T-cell epitopes to dendritic cells and elicits CTL in vivo.
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31 |
15542180
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The adenylate cyclase (CyaA) produced by Bordetella pertussis is able to deliver CD8+ and CD4+ T-cell epitopes genetically grafted within the catalytic domain of the molecule into antigen presenting cells in vivo.
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32 |
15542180
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Bordetella pertussis adenylate cyclase delivers chemically coupled CD8+ T-cell epitopes to dendritic cells and elicits CTL in vivo.
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33 |
15542180
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The adenylate cyclase (CyaA) produced by Bordetella pertussis is able to deliver CD8+ and CD4+ T-cell epitopes genetically grafted within the catalytic domain of the molecule into antigen presenting cells in vivo.
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34 |
15926077
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The Bordetella adenylate cyclase toxoid (CyaA) targets cells expressing the alphaMbeta2 integrin receptor CD11b/CD18 (CR3 or Mac-1) and can penetrate into cytosol of professional antigen-presenting cells, such as dendritic cells.
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35 |
15926077
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We show here that vaccination with a genetically detoxified CyaA336/E7 protein, carrying the full-length oncoprotein E7 of the human papilloma virus 16 inserted at position 336 of the cell-invasive AC domain of CyaA, induces an E7-specific CD8+ T-cell immune response and confers on mice protective, as well as therapeutic immunity against challenge with TC-1 tumor cells expressing the E7 oncoprotein.
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36 |
16014948
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Induction of neutralizing antibodies and Th1-polarized and CD4-independent CD8+ T-cell responses following delivery of human immunodeficiency virus type 1 Tat protein by recombinant adenylate cyclase of Bordetella pertussis.
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37 |
16014948
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We have previously demonstrated that the adenylate cyclase (CyaA) from Bordetella pertussis targets dendritic cells and delivers CD8(+) and CD4(+) T-cell epitopes into the major histocompatibility complex class I and class II presentation pathways.
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38 |
16014948
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In addition, our data demonstrated that HIV-Tat-specific gamma interferon-producing CD8(+) T cells were generated after vaccination with CyaA-E5-Tat in a CD4(+) T-cell-independent manner.
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39 |
16014948
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Induction of neutralizing antibodies and Th1-polarized and CD4-independent CD8+ T-cell responses following delivery of human immunodeficiency virus type 1 Tat protein by recombinant adenylate cyclase of Bordetella pertussis.
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40 |
16014948
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We have previously demonstrated that the adenylate cyclase (CyaA) from Bordetella pertussis targets dendritic cells and delivers CD8(+) and CD4(+) T-cell epitopes into the major histocompatibility complex class I and class II presentation pathways.
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41 |
16014948
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In addition, our data demonstrated that HIV-Tat-specific gamma interferon-producing CD8(+) T cells were generated after vaccination with CyaA-E5-Tat in a CD4(+) T-cell-independent manner.
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42 |
16552058
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Immunization with a circumsporozoite epitope fused to Bordetella pertussis adenylate cyclase in conjunction with cytotoxic T-lymphocyte-associated antigen 4 blockade confers protection against Plasmodium berghei liver-stage malaria.
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43 |
16552058
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The adenylate cyclase toxoid (ACT) of Bordetella pertussis is capable of delivering its N-terminal catalytic domain into the cytosol of CD11b-expressing professional antigen-presenting cells such as myeloid dendritic cells.
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44 |
16552058
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This allows delivery of CD8+ T-cell epitopes to the major histocompatibility complex (MHC) class I presentation pathway.
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45 |
16552058
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Recombinant detoxified ACT containing an epitope of the Plasmodium berghei circumsporozoite protein (CSP), indeed, induced a specific CD8+ T-cell response in immunized mice after a single application, as detected by MHC multimer staining and gamma interferon (IFN-gamma) ELISPOT assay.
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46 |
16552058
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This CSP-specific response could be significantly enhanced by prime-boost immunization with recombinant ACT in combination with anti-CTLA-4 during the boost immunization.
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47 |
16552058
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Immunization with a circumsporozoite epitope fused to Bordetella pertussis adenylate cyclase in conjunction with cytotoxic T-lymphocyte-associated antigen 4 blockade confers protection against Plasmodium berghei liver-stage malaria.
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48 |
16552058
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The adenylate cyclase toxoid (ACT) of Bordetella pertussis is capable of delivering its N-terminal catalytic domain into the cytosol of CD11b-expressing professional antigen-presenting cells such as myeloid dendritic cells.
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49 |
16552058
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This allows delivery of CD8+ T-cell epitopes to the major histocompatibility complex (MHC) class I presentation pathway.
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50 |
16552058
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Recombinant detoxified ACT containing an epitope of the Plasmodium berghei circumsporozoite protein (CSP), indeed, induced a specific CD8+ T-cell response in immunized mice after a single application, as detected by MHC multimer staining and gamma interferon (IFN-gamma) ELISPOT assay.
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51 |
16552058
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This CSP-specific response could be significantly enhanced by prime-boost immunization with recombinant ACT in combination with anti-CTLA-4 during the boost immunization.
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52 |
17875726
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Targeting the human papillomavirus (HPV) E7 antigen to dendritic cells with the adenylate cyclase (CyaA) of Bordetella pertussis as a vaccine vector led to potent therapeutic immune responses against TC-1 tumors in a murine model of cervical carcinoma induced by HPV.
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53 |
21441962
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In vitro activation of CMV-specific human CD8(+) T cells by adenylate cyclase toxoids delivering pp65 epitopes.
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54 |
21490585
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The antibody against the Uni-1 epitope of HA was able to bind to 13 subtypes of influenza A HA (H1-H13) while the antibodies against the HCA-2 and HCA-3 regions of NA were capable of binding all 9 NA subtypes.
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55 |
22215742
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The Bordetella adenylate cyclase toxin-hemolysin (CyaA; also called ACT or AC-Hly) targets CD11b-expressing phagocytes and translocates into their cytosol an adenylyl cyclase (AC) that hijacks cellular signaling by conversion of ATP to cyclic AMP (cAMP).
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56 |
22215742
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This has repeatedly been exploited for delivery of heterologous antigens into the cytosolic pathway of CD11b-expressing dendritic cells by CyaA/AC(-) toxoids, thus enabling their processing and presentation on major histocompatibility complex (MHC) class I molecules to cytotoxic CD8(+) T lymphocytes (CTLs).
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57 |
25024388
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Antigen targeting to CD11b+ dendritic cells in association with TLR4/TRIF signaling promotes strong CD8+ T cell responses.
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58 |
25024388
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Based on the discovery that the adenylate cyclase from Bordetella pertussis binds to the CD11b/CD18 integrin, we developed a highly efficient detoxified adenylate cyclase-based vector (CyaA) capable of delivering a large variety of Ags to the APC.
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59 |
25024388
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Overall, this study demonstrates that Ag delivery to CD11b(+) DCs in association with TLR4/Toll/IL-1R domain-containing adapter-inducing IFN-β activation is an efficient strategy to promote strong specific CD8(+) T cell responses.
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60 |
26432818
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Over the next week, the combined activities of PTX, LOS and adenylate cyclase toxin (ACT) result in production of cytokines that generate an IL-17 response, promoting neutrophil recruitment which peaks at 10-14 days after inoculation in mice.
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61 |
26437769
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Pore-formation by adenylate cyclase toxoid activates dendritic cells to prime CD8+ and CD4+ T cells.
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62 |
26437769
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The toxoid-induced in vitro phenotypic maturation of DC involved the activity of mitogen activated protein kinases p38 and JNK and comprised increased expression of maturation markers, interleukin 6, chemokines KC and LIX and granulocyte-colony-stimulating factor secretion, prostaglandin E2 production and enhancement of chemotactic migration of DC.
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63 |
26437769
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Similarly, the capacity of DC to stimulate CD8(+) and CD4(+) T-cell responses in vitro and in vivo was dependent on the pore-forming activity of CyaA-AC(-).
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64 |
12435816
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Commitment of activated T cells to secondary responsiveness is enhanced by signals mediated by cAMP-dependent protein kinase A-I.
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65 |
12435816
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We now show that this effect can also be mediated by activation of adenylate cyclase (AC) and involves PDE4, but not PDE3 or PDE7.
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66 |
12435816
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PF-mediated enhancement of T-cell priming is inhibited by blocking AC, is specifically signaled via cAMP-dependent protein kinase A (PKA) isoform I, and is probably independent of both nuclear factor-kappaB and the mitogen-activated protein kinase cascade.
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