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PMID |
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19254781
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We disrupted regulatory T cell (Treg) function to probe the balance between breast cancer vaccination and autoimmune thyroiditis (EAT) in four models, with particular attention to MHC-associated susceptibility, EAT induction with mouse thyroglobulin (mTg) without adjuvant, and tolerance to Her-2/neu in transgenic mice. 1) In EAT-resistant BALB/c mice, Treg depletion enhanced tumor regression, and facilitated mild thyroiditis induction. 2) In Her-2 tolerant C57BL/6 mice expressing HLA-DR3, an EAT-susceptibility allele, Her-2 DNA vaccinations must follow Treg depletion for (Her-2xDR3)F(1) mice to resist tumor challenge; thyroiditis incidence was moderated by the EAT-resistant IA(b) allele. 3) In neu tolerant, EAT-resistant BALB/c mice, implanted neu(+) tumor also regressed only after Treg depletion and DNA vaccinations.
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2 |
19254781
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In all three, immune stimuli from concurrent tumor regression and EAT development have a noticeable, mutually augmenting effect. 4) In Treg-depleted, EAT-susceptible CBA/J mice, strong tumor protection was established by immunization with a cell vaccine. mTg injections led to greater thyroiditis incidence and severity.
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3 |
19254781
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We disrupted regulatory T cell (Treg) function to probe the balance between breast cancer vaccination and autoimmune thyroiditis (EAT) in four models, with particular attention to MHC-associated susceptibility, EAT induction with mouse thyroglobulin (mTg) without adjuvant, and tolerance to Her-2/neu in transgenic mice. 1) In EAT-resistant BALB/c mice, Treg depletion enhanced tumor regression, and facilitated mild thyroiditis induction. 2) In Her-2 tolerant C57BL/6 mice expressing HLA-DR3, an EAT-susceptibility allele, Her-2 DNA vaccinations must follow Treg depletion for (Her-2xDR3)F(1) mice to resist tumor challenge; thyroiditis incidence was moderated by the EAT-resistant IA(b) allele. 3) In neu tolerant, EAT-resistant BALB/c mice, implanted neu(+) tumor also regressed only after Treg depletion and DNA vaccinations.
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4 |
19254781
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In all three, immune stimuli from concurrent tumor regression and EAT development have a noticeable, mutually augmenting effect. 4) In Treg-depleted, EAT-susceptible CBA/J mice, strong tumor protection was established by immunization with a cell vaccine. mTg injections led to greater thyroiditis incidence and severity.
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5 |
19380836
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We have established murine test models to assess such risks by monitoring, simultaneously, the immune reactivity to tumor-associated rat erbB-2 (neu) and another self Ag, mouse thyroglobulin (mTg).
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6 |
19380836
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We previously reported that in wild-type, thyroiditis-resistant BALB/c mice that underwent regression of neu(+) TUBO tumors following regulatory T cell (Treg) depletion, immune responses to rat neu and mTg with resultant autoimmune thyroiditis (EAT) were both enhanced.
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7 |
19380836
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The risk of developing EAT was then assessed by incorporated mTg immunization with or without LPS as adjuvant.
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8 |
19380836
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In mice with induced tumor regression, mTg response was enhanced with modest increases in EAT development.
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9 |
19380836
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We have established murine test models to assess such risks by monitoring, simultaneously, the immune reactivity to tumor-associated rat erbB-2 (neu) and another self Ag, mouse thyroglobulin (mTg).
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10 |
19380836
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We previously reported that in wild-type, thyroiditis-resistant BALB/c mice that underwent regression of neu(+) TUBO tumors following regulatory T cell (Treg) depletion, immune responses to rat neu and mTg with resultant autoimmune thyroiditis (EAT) were both enhanced.
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11 |
19380836
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The risk of developing EAT was then assessed by incorporated mTg immunization with or without LPS as adjuvant.
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12 |
19380836
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In mice with induced tumor regression, mTg response was enhanced with modest increases in EAT development.
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13 |
19380836
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We have established murine test models to assess such risks by monitoring, simultaneously, the immune reactivity to tumor-associated rat erbB-2 (neu) and another self Ag, mouse thyroglobulin (mTg).
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14 |
19380836
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We previously reported that in wild-type, thyroiditis-resistant BALB/c mice that underwent regression of neu(+) TUBO tumors following regulatory T cell (Treg) depletion, immune responses to rat neu and mTg with resultant autoimmune thyroiditis (EAT) were both enhanced.
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15 |
19380836
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The risk of developing EAT was then assessed by incorporated mTg immunization with or without LPS as adjuvant.
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16 |
19380836
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In mice with induced tumor regression, mTg response was enhanced with modest increases in EAT development.
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17 |
24100507
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Among the seven STAT family proteins, STAT3 is constitutively activated in many diverse cancers.
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18 |
24100507
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STAT3 downstream proteins involved in cell proliferation and survival, such as c-Myc and Mcl-1, are downregulated by MLS-2384 in prostate cancer cells, whereas survivin is downregulated in A2058 cells.
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19 |
24100507
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Our findings support further development of MLS-2384 as a potential small-molecule therapeutic agent that targets JAK, Src, and STAT3 signaling in multiple human cancer cells.
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20 |
24711582
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However, ZBTB20-deficient plasma cells expressed reduced levels of MCL1 relative to wild-type controls, and transgenic expression of BCL2 increased serum antibody titers.
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21 |
24711582
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Strikingly, adjuvants that activate TLR2 and TLR4 restored long-term antibody production in ZBTB20-deficient chimeras through the induction of compensatory survival programs in plasma cells.
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22 |
25308513
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Overexpression of Bcl-2, Bcl-xL, and/or Mcl-1 has been associated with chemoresistance in AML cell lines and with poor clinical outcome of AML patients.
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23 |
25308513
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Most importantly, in AML cells treated with the combination, enhanced early induction of DNA double-strand breaks (DSBs) preceded a decrease of Mcl-1 levels, nuclear translocation of Bcl-2, Bcl-xL, and Mcl-1, and apoptosis.
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24 |
25308513
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Overexpression of Bcl-2, Bcl-xL, and/or Mcl-1 has been associated with chemoresistance in AML cell lines and with poor clinical outcome of AML patients.
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25 |
25308513
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Most importantly, in AML cells treated with the combination, enhanced early induction of DNA double-strand breaks (DSBs) preceded a decrease of Mcl-1 levels, nuclear translocation of Bcl-2, Bcl-xL, and Mcl-1, and apoptosis.
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26 |
25333301
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CQ significantly enhanced GX15-070-induced apoptosis in the cell line models, possibly due to downregulation of Bcl-2, Bcl-xL and Mcl-1 in the cells by the two agents.
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27 |
25473100
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Notably, the delay of PCD was mediated by modulation of the antiapoptotic proteins, Mcl-1 and Bfl-1, and impairment of loss of Δψm in macrophages through the neutralization of oxidative and nitrosative stress.
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28 |
25473100
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Analysis of the targets of LdDNA identified an early activation of the TLR9-dependent PI3K/Akt and SFK pathways, which were required for the observation of the antiapoptotic effects in macrophages.
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29 |
26225923
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Interleukin-24 (IL-24), a member of the IL-10 cytokine gene family, causes growth suppression and apoptosis in various solid tumor cells.
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30 |
26225923
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In addition, IL-24 expression could significantly induce apoptosis of the THP-1 cells.
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31 |
26225923
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Ad.RGD-IL-24 had a potent effect on the up-regulation of the expression of GRP78/Bip, GADD34 and Bax, down-regulation of the expression of Bcl-2 and Mcl-1, and induced the activation of Caspase-3, which may be responsible for its apoptosis-inducing effect on THP-1 cells.
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32 |
26367324
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Interleukin-24 inhibits influenza A virus replication in vitro through induction of toll-like receptor 3 dependent apoptosis.
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33 |
26367324
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Recently, we have shown that interleukin-24 (IL-24) sensitizes tumor cells to toll-like receptor 3 (TLR3) mediated apoptosis.
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34 |
26367324
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As influenza A virus stimulates the TLR3 receptor, we hypothesized that IL-24 might also exert an anti-viral effect.
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35 |
26367324
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The anti-viral effect of IL-24 correlated with caspase-3 activation and could be blocked by a pan-caspase inhibitor and by small interfering RNA (siRNA) directed towards TLR3.
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36 |
26367324
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Surprisingly, caspase-3 activation in influenza A virus/IL-24-stimulated cells correlated with the down-regulation of the B-cell lymphoma 2 (Bcl-2) family member myeloid cell leukemia 1 (Mcl-1).
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37 |
26367324
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We conclude that IL-24 exerts an anti-viral role selectively purging virally infected cells by leading to a down-regulation of Mcl-1.
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38 |
26367324
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Interleukin-24 inhibits influenza A virus replication in vitro through induction of toll-like receptor 3 dependent apoptosis.
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39 |
26367324
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Recently, we have shown that interleukin-24 (IL-24) sensitizes tumor cells to toll-like receptor 3 (TLR3) mediated apoptosis.
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40 |
26367324
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As influenza A virus stimulates the TLR3 receptor, we hypothesized that IL-24 might also exert an anti-viral effect.
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41 |
26367324
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The anti-viral effect of IL-24 correlated with caspase-3 activation and could be blocked by a pan-caspase inhibitor and by small interfering RNA (siRNA) directed towards TLR3.
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42 |
26367324
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Surprisingly, caspase-3 activation in influenza A virus/IL-24-stimulated cells correlated with the down-regulation of the B-cell lymphoma 2 (Bcl-2) family member myeloid cell leukemia 1 (Mcl-1).
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43 |
26367324
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We conclude that IL-24 exerts an anti-viral role selectively purging virally infected cells by leading to a down-regulation of Mcl-1.
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