LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 11

Search options

  1. Article ; Online: moDCs, Less Problems.

    Gardner, Alycia / Ruffell, Brian

    Immunity

    2018  Volume 48, Issue 1, Page(s) 6–8

    Abstract: Type 1 conventional dendritic cells are necessary for the development of anti-tumor immunity. In this issue of Immunity, Sharma et al. (2018) identify a phenotypically similar monocyte-derived population within inflamed tumors that promotes T cell ... ...

    Abstract Type 1 conventional dendritic cells are necessary for the development of anti-tumor immunity. In this issue of Immunity, Sharma et al. (2018) identify a phenotypically similar monocyte-derived population within inflamed tumors that promotes T cell responses during therapy.
    MeSH term(s) Cell Differentiation ; Cells, Cultured ; Dendritic Cells ; Monocytes ; T-Lymphocytes
    Language English
    Publishing date 2018-01-17
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Comment
    ZDB-ID 1217235-2
    ISSN 1097-4180 ; 1074-7613
    ISSN (online) 1097-4180
    ISSN 1074-7613
    DOI 10.1016/j.immuni.2017.12.017
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Dendritic Cells and Their Role in Immunotherapy.

    Gardner, Alycia / de Mingo Pulido, Álvaro / Ruffell, Brian

    Frontiers in immunology

    2020  Volume 11, Page(s) 924

    Abstract: Despite significant advances in the field of cancer immunotherapy, the majority of patients still do not benefit from treatment and must rely on traditional therapies. Dendritic cells have long been a focus of cancer immunotherapy due to their role in ... ...

    Abstract Despite significant advances in the field of cancer immunotherapy, the majority of patients still do not benefit from treatment and must rely on traditional therapies. Dendritic cells have long been a focus of cancer immunotherapy due to their role in inducing protective adaptive immunity, but cancer vaccines have shown limited efficacy in the past. With the advent of immune checkpoint blockade and the ability to identify patient-specific neoantigens, new vaccines, and combinatorial therapies are being evaluated in the clinic. Dendritic cells are also emerging as critical regulators of the immune response within tumors. Understanding how to augment the function of these intratumoral dendritic cells could offer new approaches to enhance immunotherapy, in addition to improving the cytotoxic and targeted therapies that are partially dependent upon a robust immune response for their efficacy. Here we will discuss the role of specific dendritic cell subsets in regulating the anti-tumor immune response, as well as the current status of dendritic cell-based immunotherapies, in order to provide an overview for future lines of research and clinical trials.
    MeSH term(s) Animals ; Antineoplastic Agents, Immunological/adverse effects ; Antineoplastic Agents, Immunological/therapeutic use ; Cancer Vaccines/adverse effects ; Cancer Vaccines/therapeutic use ; Dendritic Cells/drug effects ; Dendritic Cells/immunology ; Dendritic Cells/metabolism ; Dendritic Cells/transplantation ; Humans ; Immune Checkpoint Inhibitors/adverse effects ; Immune Checkpoint Inhibitors/therapeutic use ; Immunotherapy, Adoptive/adverse effects ; Neoplasms/immunology ; Neoplasms/metabolism ; Neoplasms/therapy ; Phenotype ; Signal Transduction ; Treatment Outcome
    Chemical Substances Antineoplastic Agents, Immunological ; Cancer Vaccines ; Immune Checkpoint Inhibitors
    Language English
    Publishing date 2020-05-21
    Publishing country Switzerland
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S. ; Review
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2020.00924
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Reducing interferon'ce in stem cells.

    Gardner, Alycia / Ruffell, Brian

    Nature cell biology

    2017  Volume 19, Issue 6, Page(s) 597–599

    Abstract: Little is known regarding how the interactions of stem cells with the immune system regulate their plasticity. A study now describes a mechanism by which normal breast and cancer stem cells utilize miR-199a to downregulate the corepressor LCOR and ... ...

    Abstract Little is known regarding how the interactions of stem cells with the immune system regulate their plasticity. A study now describes a mechanism by which normal breast and cancer stem cells utilize miR-199a to downregulate the corepressor LCOR and minimize responses to type I interferon.
    MeSH term(s) Animals ; Cell Proliferation ; Humans ; Immune System/metabolism ; Interferons/metabolism ; MicroRNAs/genetics ; MicroRNAs/metabolism ; Models, Biological ; Neoplastic Stem Cells/pathology ; Stem Cells/metabolism
    Chemical Substances MicroRNAs ; Interferons (9008-11-1)
    Language English
    Publishing date 2017-05-31
    Publishing country England
    Document type Journal Article
    ZDB-ID 1474722-4
    ISSN 1476-4679 ; 1465-7392
    ISSN (online) 1476-4679
    ISSN 1465-7392
    DOI 10.1038/ncb3544
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Combating castration-resistant prostate cancer by co-targeting the epigenetic regulators EZH2 and HDAC.

    Schade, Amy E / Kuzmickas, Ryan / Rodriguez, Carrie L / Mattioli, Kaia / Enos, Miriam / Gardner, Alycia / Cichowski, Karen

    PLoS biology

    2023  Volume 21, Issue 4, Page(s) e3002038

    Abstract: While screening and early detection have reduced mortality from prostate cancer, castration-resistant disease (CRPC) is still incurable. Here, we report that combined EZH2/HDAC inhibitors potently kill CRPCs and cause dramatic tumor regression in ... ...

    Abstract While screening and early detection have reduced mortality from prostate cancer, castration-resistant disease (CRPC) is still incurable. Here, we report that combined EZH2/HDAC inhibitors potently kill CRPCs and cause dramatic tumor regression in aggressive human and mouse CRPC models. Notably, EZH2 and HDAC both transmit transcriptional repressive signals: regulating histone H3 methylation and histone deacetylation, respectively. Accordingly, we show that suppression of both EZH2 and HDAC are required to derepress/induce a subset of EZH2 targets, by promoting the sequential demethylation and acetylation of histone H3. Moreover, we find that the induction of one of these targets, ATF3, which is a broad stress response gene, is critical for the therapeutic response. Importantly, in human tumors, low ATF3 levels are associated with decreased survival. Moreover, EZH2- and ATF3-mediated transcriptional programs inversely correlate and are most highly/lowly expressed in advanced disease. Together, these studies identify a promising therapeutic strategy for CRPC and suggest that these two major epigenetic regulators buffer prostate cancers from a lethal response to cellular stresses, thereby conferring a tractable therapeutic vulnerability.
    MeSH term(s) Animals ; Humans ; Male ; Mice ; Cell Line, Tumor ; Enhancer of Zeste Homolog 2 Protein/genetics ; Epigenesis, Genetic ; Gene Expression Regulation, Neoplastic ; Histones/metabolism ; Prostatic Neoplasms, Castration-Resistant/genetics ; Prostatic Neoplasms, Castration-Resistant/drug therapy ; Histone Deacetylases
    Chemical Substances Enhancer of Zeste Homolog 2 Protein (EC 2.1.1.43) ; EZH2 protein, human (EC 2.1.1.43) ; Histones ; Ezh2 protein, mouse (EC 2.1.1.43) ; Histone Deacetylases (EC 3.5.1.98)
    Language English
    Publishing date 2023-04-27
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2126776-5
    ISSN 1545-7885 ; 1544-9173
    ISSN (online) 1545-7885
    ISSN 1544-9173
    DOI 10.1371/journal.pbio.3002038
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: DAB2IP Is a Bifunctional Tumor Suppressor That Regulates Wild-Type RAS and Inflammatory Cascades in KRAS Mutant Colon Cancer.

    Miller, Abigail L / Perurena, Naiara / Gardner, Alycia / Hinoue, Toshinori / Loi, Patrick / Laird, Peter W / Cichowski, Karen

    Cancer research

    2023  Volume 83, Issue 11, Page(s) 1800–1814

    Abstract: The DAB2IP tumor suppressor encodes a RAS GTPase-activating protein. Accordingly, DAB2IP has been shown to be mutated or suppressed in tumor types that typically lack RAS mutations. However, here we report that DAB2IP is mutated or selectively silenced ... ...

    Abstract The DAB2IP tumor suppressor encodes a RAS GTPase-activating protein. Accordingly, DAB2IP has been shown to be mutated or suppressed in tumor types that typically lack RAS mutations. However, here we report that DAB2IP is mutated or selectively silenced in the vast majority of KRAS and BRAF mutant colorectal cancers. In this setting, DAB2IP loss promoted tumor development by activating wild-type H- and N-RAS proteins, which was surprisingly required to achieve robust activation of RAS effector pathways in KRAS-mutant tumors. DAB2IP loss also triggered production of inflammatory mediators and the recruitment of protumorigenic macrophages in vivo. Importantly, tumor growth was suppressed by depleting macrophages or inhibiting cytokine/inflammatory mediator expression with a JAK/TBK1 inhibitor. In human tumors, DAB2IP was lost at early stages of tumor development, and its depletion was associated with an enrichment of macrophage and inflammatory signatures. Together, these findings demonstrate that DAB2IP restrains the activation of the RAS pathway and inflammatory cascades in the colon and that its loss represents a common and unappreciated mechanism for amplifying these two critical oncogenic signals in colorectal cancer.
    Significance: DAB2IP is lost in early-stage tumors, which amplifies RAS signaling, triggers inflammatory mediators, and recruits macrophages in KRAS-mutant colon cancers.
    MeSH term(s) Humans ; Proto-Oncogene Proteins p21(ras)/genetics ; Proto-Oncogene Proteins p21(ras)/metabolism ; Genes, Tumor Suppressor ; Colonic Neoplasms/genetics ; Signal Transduction ; ras GTPase-Activating Proteins/genetics ; ras GTPase-Activating Proteins/metabolism ; Cell Line, Tumor
    Chemical Substances Proto-Oncogene Proteins p21(ras) (EC 3.6.5.2) ; ras GTPase-Activating Proteins ; KRAS protein, human ; DAB2IP protein, human
    Language English
    Publishing date 2023-03-18
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 1432-1
    ISSN 1538-7445 ; 0008-5472
    ISSN (online) 1538-7445
    ISSN 0008-5472
    DOI 10.1158/0008-5472.CAN-22-0370
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: Dendritic Cells and Cancer Immunity.

    Gardner, Alycia / Ruffell, Brian

    Trends in immunology

    2016  Volume 37, Issue 12, Page(s) 855–865

    Abstract: Dendritic cells (DCs) are central regulators of the adaptive immune response, and as such are necessary for T-cell-mediated cancer immunity. In particular, antitumoral responses depend on a specialized subset of conventional DCs that transport tumor ... ...

    Abstract Dendritic cells (DCs) are central regulators of the adaptive immune response, and as such are necessary for T-cell-mediated cancer immunity. In particular, antitumoral responses depend on a specialized subset of conventional DCs that transport tumor antigens to draining lymph nodes and cross-present antigen to activate cytotoxic T lymphocytes. DC maturation is necessary to provide costimulatory signals to T cells, but while DC maturation occurs within tumors, it is often insufficient to induce potent immunity, particularly in light of suppressive mechanisms within tumors. Bypassing suppressive pathways or directly activating DCs can unleash a T-cell response, and although clinical efficacy has proven elusive, therapeutic targeting of DCs continues to hold translational potential in combinatorial approaches.
    MeSH term(s) Animals ; Antigen Presentation ; Antigens, Neoplasm/immunology ; Cancer Vaccines/immunology ; Cell Differentiation ; Cross-Priming ; Dendritic Cells/immunology ; Dendritic Cells/transplantation ; Humans ; Immunotherapy/methods ; Neoplasms/immunology ; Neoplasms/therapy ; T-Lymphocytes, Cytotoxic/immunology ; Tumor Microenvironment
    Chemical Substances Antigens, Neoplasm ; Cancer Vaccines
    Language English
    Publishing date 2016-12
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 2036831-8
    ISSN 1471-4981 ; 1471-4906
    ISSN (online) 1471-4981
    ISSN 1471-4906
    DOI 10.1016/j.it.2016.09.006
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: TIM-3 blockade enhances IL-12-dependent antitumor immunity by promoting CD8

    Gardner, Alycia / de Mingo Pulido, Álvaro / Hänggi, Kay / Bazargan, Sarah / Onimus, Alexis / Kasprzak, Agnieszka / Conejo-Garcia, Jose R / Rejniak, Katarzyna A / Ruffell, Brian

    Journal for immunotherapy of cancer

    2022  Volume 10, Issue 1

    Abstract: Background: T cell immunoglobulin and mucin domain containing-3 (TIM-3) blocking antibodies are currently being evaluated in clinical trials for solid and hematological malignancies. Despite its identification on T cells, TIM-3 is predominantly ... ...

    Abstract Background: T cell immunoglobulin and mucin domain containing-3 (TIM-3) blocking antibodies are currently being evaluated in clinical trials for solid and hematological malignancies. Despite its identification on T cells, TIM-3 is predominantly expressed by myeloid cells, including XCR1
    Methods: T cell infiltration, effector function, and spatial localization in relation to XCR1
    Results: TIM-3 blockade increased interferon-γ expression by CD8
    Conclusions: TIM-3 blockade increases exposure of intratumoral CD8
    MeSH term(s) Animals ; CD8-Positive T-Lymphocytes/immunology ; Dendritic Cells/immunology ; Hepatitis A Virus Cellular Receptor 2/antagonists & inhibitors ; Humans ; Immunotherapy/methods ; Interleukin-12/metabolism ; Mice ; Receptors, Chemokine/metabolism ; Signal Transduction
    Chemical Substances Havcr2 protein, mouse ; Hepatitis A Virus Cellular Receptor 2 ; Receptors, Chemokine ; XC chemokine receptor 1, mouse ; Interleukin-12 (187348-17-0)
    Language English
    Publishing date 2022-01-05
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 2719863-7
    ISSN 2051-1426 ; 2051-1426
    ISSN (online) 2051-1426
    ISSN 2051-1426
    DOI 10.1136/jitc-2021-003571
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: A novel role for transcription-coupled nucleotide excision repair for the in vivo repair of 3,N4-ethenocytosine.

    Chaim, Isaac A / Gardner, Alycia / Wu, Jie / Iyama, Teruaki / Wilson, David M / Samson, Leona D

    Nucleic acids research

    2017  Volume 45, Issue 6, Page(s) 3242–3252

    Abstract: Etheno (ε) DNA base adducts are highly mutagenic lesions produced endogenously via reactions with lipid peroxidation (LPO) products. Cancer-promoting conditions, such as inflammation, can induce persistent oxidative stress and increased LPO, resulting in ...

    Abstract Etheno (ε) DNA base adducts are highly mutagenic lesions produced endogenously via reactions with lipid peroxidation (LPO) products. Cancer-promoting conditions, such as inflammation, can induce persistent oxidative stress and increased LPO, resulting in the accumulation of ε-adducts in different tissues. Using a recently described fluorescence multiplexed host cell reactivation assay, we show that a plasmid reporter bearing a site-specific 3,N4-ethenocytosine (εC) causes transcriptional blockage. Notably, this blockage is exacerbated in Cockayne Syndrome and xeroderma pigmentosum patient-derived lymphoblastoid and fibroblast cells. Parallel RNA-Seq expression analysis of the plasmid reporter identifies novel transcriptional mutagenesis properties of εC. Our studies reveal that beyond the known pathways, such as base excision repair, the process of transcription-coupled nucleotide excision repair plays a role in the removal of εC from the genome, and thus in the protection of cells and tissues from collateral damage induced by inflammatory responses.
    MeSH term(s) Adenine/analogs & derivatives ; Adenine/metabolism ; Animals ; Cell Line ; Cells, Cultured ; Cockayne Syndrome/genetics ; Cytosine/analogs & derivatives ; Cytosine/metabolism ; DNA Adducts/metabolism ; DNA Repair ; DNA Repair Enzymes/genetics ; Humans ; Mice ; Mice, Knockout ; Mutagenesis ; RNA Polymerase II/metabolism ; Transcription, Genetic ; Xeroderma Pigmentosum/genetics
    Chemical Substances 3,N(4)-ethenocytosine ; DNA Adducts ; 1,N(6)-ethenoadenine (13875-63-3) ; Cytosine (8J337D1HZY) ; RNA Polymerase II (EC 2.7.7.-) ; DNA Repair Enzymes (EC 6.5.1.-) ; Adenine (JAC85A2161)
    Language English
    Publishing date 2017-01-24
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, N.I.H., Extramural
    ZDB-ID 186809-3
    ISSN 1362-4962 ; 1362-4954 ; 0301-5610 ; 0305-1048
    ISSN (online) 1362-4962 ; 1362-4954
    ISSN 0301-5610 ; 0305-1048
    DOI 10.1093/nar/gkx015
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: TIM-3 Regulates CD103

    de Mingo Pulido, Álvaro / Gardner, Alycia / Hiebler, Shandi / Soliman, Hatem / Rugo, Hope S / Krummel, Matthew F / Coussens, Lisa M / Ruffell, Brian

    Cancer cell

    2018  Volume 33, Issue 1, Page(s) 60–74.e6

    Abstract: Intratumoral ... ...

    Abstract Intratumoral CD103
    MeSH term(s) Animals ; Antigens, CD/immunology ; Basic-Leucine Zipper Transcription Factors/deficiency ; Breast Neoplasms/genetics ; Breast Neoplasms/metabolism ; CD4-Positive T-Lymphocytes/immunology ; CD8-Positive T-Lymphocytes/immunology ; Dendritic Cells/immunology ; Female ; Hepatitis A Virus Cellular Receptor 2/genetics ; Humans ; Integrin alpha Chains/immunology ; Interferon Regulatory Factors/immunology ; Mice, Transgenic
    Chemical Substances Antigens, CD ; Basic-Leucine Zipper Transcription Factors ; HAVCR2 protein, human ; Havcr2 protein, mouse ; Hepatitis A Virus Cellular Receptor 2 ; Integrin alpha Chains ; Interferon Regulatory Factors ; alpha E integrins ; interferon regulatory factor-8
    Language English
    Publishing date 2018-01-09
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 2078448-X
    ISSN 1878-3686 ; 1535-6108
    ISSN (online) 1878-3686
    ISSN 1535-6108
    DOI 10.1016/j.ccell.2017.11.019
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: The inhibitory receptor TIM-3 limits activation of the cGAS-STING pathway in intra-tumoral dendritic cells by suppressing extracellular DNA uptake.

    de Mingo Pulido, Álvaro / Hänggi, Kay / Celias, Daiana P / Gardner, Alycia / Li, Jie / Batista-Bittencourt, Bruna / Mohamed, Eslam / Trillo-Tinoco, Jimena / Osunmakinde, Olabisi / Peña, Reymi / Onimus, Alexis / Kaisho, Tsuneyasu / Kaufmann, Johanna / McEachern, Kristen / Soliman, Hatem / Luca, Vincent C / Rodriguez, Paulo C / Yu, Xiaoqing / Ruffell, Brian

    Immunity

    2021  Volume 54, Issue 6, Page(s) 1154–1167.e7

    Abstract: Blockade of the inhibitory receptor TIM-3 shows efficacy in cancer immunotherapy clinical trials. TIM-3 inhibits production of the chemokine CXCL9 by ... ...

    Abstract Blockade of the inhibitory receptor TIM-3 shows efficacy in cancer immunotherapy clinical trials. TIM-3 inhibits production of the chemokine CXCL9 by XCR1
    MeSH term(s) Animals ; Biological Transport/physiology ; Cell Line ; Cell Line, Tumor ; Chemokines/metabolism ; Cytoplasm/metabolism ; DNA/metabolism ; Dendritic Cells/metabolism ; Endocytosis/physiology ; Female ; HEK293 Cells ; Hepatitis A Virus Cellular Receptor 2/metabolism ; Humans ; Immunotherapy/methods ; Membrane Proteins/metabolism ; Mice ; Mice, Inbred C57BL ; Nucleotidyltransferases/metabolism ; Signal Transduction/physiology
    Chemical Substances Chemokines ; Havcr2 protein, mouse ; Hepatitis A Virus Cellular Receptor 2 ; Membrane Proteins ; Sting1 protein, mouse ; DNA (9007-49-2) ; Nucleotidyltransferases (EC 2.7.7.-) ; cGAS protein, mouse (EC 2.7.7.-)
    Language English
    Publishing date 2021-05-11
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 1217235-2
    ISSN 1097-4180 ; 1074-7613
    ISSN (online) 1097-4180
    ISSN 1074-7613
    DOI 10.1016/j.immuni.2021.04.019
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top