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  1. Article ; Online: IL-23 induces CLEC5A

    Furuya, Hiroki / Nguyen, Cuong Thach / Chan, Trevor / Marusina, Alina I / Merleev, Alexander A / Garcia-Hernandez, Maria de la Luz / Hsieh, Shie-Liang / Tsokos, George C / Ritchlin, Christopher T / Tagkopoulos, Ilias / Maverakis, Emanual / Adamopoulos, Iannis E

    Journal of autoimmunity

    2024  Volume 143, Page(s) 103167

    Abstract: IL-23-activation of IL-17 producing T cells is involved in many rheumatic diseases. Herein, we investigate the role of IL-23 in the activation of myeloid cell subsets that contribute to skin inflammation in mice and man. IL-23 gene transfer in WT, IL- ... ...

    Abstract IL-23-activation of IL-17 producing T cells is involved in many rheumatic diseases. Herein, we investigate the role of IL-23 in the activation of myeloid cell subsets that contribute to skin inflammation in mice and man. IL-23 gene transfer in WT, IL-23R
    MeSH term(s) Humans ; Arthritis, Psoriatic/pathology ; Interleukin-17/genetics ; Interleukin-17/metabolism ; Neutrophils/metabolism ; Psoriasis ; Skin/pathology ; Dermatitis/pathology ; Inflammation ; Interleukin-23/genetics ; Interleukin-23/metabolism ; Receptors, Cell Surface/metabolism ; Lectins, C-Type/genetics
    Chemical Substances Interleukin-17 ; Interleukin-23 ; CLEC5A protein, human ; Receptors, Cell Surface ; Lectins, C-Type
    Language English
    Publishing date 2024-02-01
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 639452-8
    ISSN 1095-9157 ; 0896-8411
    ISSN (online) 1095-9157
    ISSN 0896-8411
    DOI 10.1016/j.jaut.2024.103167
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Sodium-Glucose Cotransporter-2 Inhibitor, Empagliflozin, Suppresses the Inflammatory Immune Response to Influenza Infection.

    Constantinesco, Nicholas J / Chinnappan, Baskaran / DeVito, Louis J / Moras, Crystal / Srikanth, Sashwath / Garcia-Hernandez, Maria de la Luz / Rangel-Moreno, Javier / Gopal, Radha

    ImmunoHorizons

    2023  Volume 7, Issue 12, Page(s) 861–871

    Abstract: Influenza is a highly contagious, acute respiratory disease that causes significant public health and economic threats. Influenza infection induces various inflammatory mediators, IFNs, and recruitment of inflammatory cells in the host. This inflammatory ...

    Abstract Influenza is a highly contagious, acute respiratory disease that causes significant public health and economic threats. Influenza infection induces various inflammatory mediators, IFNs, and recruitment of inflammatory cells in the host. This inflammatory "cytokine storm" is thought to play a role in influenza-induced lung pathogenesis. Empagliflozin is a drug primarily used to lower blood glucose in type II diabetes patients by inhibiting the sodium-glucose cotransporter-2 (SGLT-2) found in the proximal tubules in the kidneys. In this study, we have investigated the effects of empagliflozin on the pulmonary immune response to influenza infection. C57BL/6 mice (wild type) were infected with influenza A/PR/8/34 and treated with empagliflozin, and the disease outcomes were analyzed. Empagliflozin treatment decreased the expression of the inflammatory cytokines IL-1β, IL-6, and CCL2; the percentage of inflammatory monocytes and inducible NO synthase-positive macrophages; and IFN response genes Stat1 and CXCL9 during influenza infection. Further, empagliflozin treatment decreases the expression of IL-6, CCL2, and CCL5 in RAW264.7 macrophages and bone marrow-derived macrophages. However, empagliflozin treatment increased influenza viral titer during infection. Despite fostering an increased viral burden, treatment with empagliflozin decreases the mortality in wild type and high fat diet-induced atherosclerotic LDLR-/- mice. Based on our findings, empagliflozin may have therapeutic implications for use in patients to prevent lung damage and acute respiratory illness.
    MeSH term(s) Humans ; Mice ; Animals ; Sodium-Glucose Transporter 2 Inhibitors/pharmacology ; Sodium-Glucose Transporter 2 Inhibitors/therapeutic use ; Diabetes Mellitus, Type 2 ; Influenza, Human/drug therapy ; Interleukin-6 ; Mice, Inbred C57BL ; Blood Glucose ; Immunity ; Sodium/therapeutic use
    Chemical Substances empagliflozin (HDC1R2M35U) ; Sodium-Glucose Transporter 2 Inhibitors ; Interleukin-6 ; Blood Glucose ; Sodium (9NEZ333N27)
    Language English
    Publishing date 2023-12-19
    Publishing country United States
    Document type Journal Article
    ISSN 2573-7732
    ISSN (online) 2573-7732
    DOI 10.4049/immunohorizons.2300077
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Dendritic cell-specific transmembrane protein is required for synovitis and bone resorption in inflammatory arthritis.

    Garcia-Hernandez, Maria de la Luz / Rangel-Moreno, Javier / Garcia-Castaneda, Maricela / Kenney, H Mark / Paine, Ananta / Thullen, Michael / Anandarajah, Allen P / Schwarz, Edward M / Dirksen, Robert T / Ritchlin, Christopher T

    Frontiers in immunology

    2022  Volume 13, Page(s) 1026574

    Abstract: Objective: Dendritic Cell-Specific Transmembrane Protein (DC-STAMP) is essential for the formation of fully functional multinucleated osteoclasts. DC-STAMP deficient mice, under physiological conditions, exhibit osteopetrosis and develop systemic ... ...

    Abstract Objective: Dendritic Cell-Specific Transmembrane Protein (DC-STAMP) is essential for the formation of fully functional multinucleated osteoclasts. DC-STAMP deficient mice, under physiological conditions, exhibit osteopetrosis and develop systemic autoimmunity with age. However, the function of DC-STAMP in inflammation is currently unknown. We examined whether genetic ablation of DC-STAMP attenuates synovitis and bone erosion in TNF transgenic (Tg) and K/BxN serum-induced murine rheumatoid arthritis.
    Methods: We evaluated arthritis onset in Tg(hTNF) mice lacking DC-STAMP and 50:50 chimeric mice by visual examination, measurement of ankle width, micro-CT-scan analysis and quantitation of the area occupied by osteoclasts in bone sections. To further investigate the cellular and molecular events modulated by DC-STAMP, we measured serum cytokines, determined changes in cytokine mRNA expression by monocytes activated with IL4 or LPS/IFNγ and enumerated immune cells in inflamed mouse joints.
    Results: Synovitis, bone loss and matrix destruction are markedly reduced in Dcstamp
    Conclusion: These results reveal that DC-STAMP modulates both bone resorption and inflammation and may serve as an activity biomarker and therapeutic target in inflammatory arthritis and metabolic bone disease.
    MeSH term(s) Animals ; Mice ; Membrane Proteins/metabolism ; Bone Resorption/metabolism ; Synovitis ; Arthritis, Rheumatoid/metabolism ; Dendritic Cells/metabolism ; Inflammation ; Cytokines
    Chemical Substances Membrane Proteins ; Cytokines
    Language English
    Publishing date 2022-11-07
    Publishing country Switzerland
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2022.1026574
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Inducible Bronchus-Associated Lymphoid Tissue (iBALT) Attenuates Pulmonary Pathology in a Mouse Model of Allergic Airway Disease.

    Hwang, Ji Young / Silva-Sanchez, Aaron / Carragher, Damian M / Garcia-Hernandez, Maria de la Luz / Rangel-Moreno, Javier / Randall, Troy D

    Frontiers in immunology

    2020  Volume 11, Page(s) 570661

    Abstract: Inducible Bronchus Associated Lymphoid Tissue (iBALT) is an ectopic lymphoid tissue associated with severe forms of chronic lung diseases, including chronic obstructive pulmonary disease, rheumatoid lung disease, hypersensitivity pneumonitis and asthma, ... ...

    Abstract Inducible Bronchus Associated Lymphoid Tissue (iBALT) is an ectopic lymphoid tissue associated with severe forms of chronic lung diseases, including chronic obstructive pulmonary disease, rheumatoid lung disease, hypersensitivity pneumonitis and asthma, suggesting that iBALT may exacerbate these clinical conditions. However, despite the link between pulmonary pathology and iBALT formation, the role of iBALT in pathogenesis remains unknown. Here we tested whether the presence of iBALT in the lung prior to sensitization and challenge with a pulmonary allergen altered the biological outcome of disease. We found that the presence of iBALT did not exacerbate Th2 responses to pulmonary sensitization with ovalbumin. Instead, we found that mice with iBALT exhibited delayed Th2 accumulation in the lung, reduced eosinophil recruitment, reduced goblet cell hyperplasia and reduced mucus production. The presence of iBALT did not alter Th2 priming, but instead delayed the accumulation of Th2 cells in the lung following challenge and altered the spatial distribution of T cells in the lung. These results suggest that the formation of iBALT and sequestration of effector T cells in the context of chronic pulmonary inflammation may be a mechanism by which the immune system attenuates pulmonary inflammation and prevents excessive pathology.
    MeSH term(s) Animals ; Bronchi/immunology ; Disease Models, Animal ; Humans ; Hypersensitivity/immunology ; Immunity, Mucosal ; Inflammation/immunology ; Lung/immunology ; Lymphocyte Activation ; Lymphoid Tissue/immunology ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Respiratory System/immunology ; Th2 Cells/immunology
    Keywords covid19
    Language English
    Publishing date 2020-09-25
    Publishing country Switzerland
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2020.570661
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Neutrophil elastase from myeloid cells promotes TSC2-null tumor growth.

    Taya, Manisha / Garcia-Hernandez, Maria de la Luz / Rangel-Moreno, Javier / Minor, Briaunna / Gibbons, Erin / Hammes, Stephen R

    Endocrine-related cancer

    2020  Volume 27, Issue 4, Page(s) 261–274

    Abstract: Chronic inflammation promotes progression of many cancers, with circulating myeloid-derived suppressor cell (MDSC) levels correlating with poor prognosis. Here we examine effects of MDSCs on lymphangioleiomyomatosis (LAM), a rare disease occurring almost ...

    Abstract Chronic inflammation promotes progression of many cancers, with circulating myeloid-derived suppressor cell (MDSC) levels correlating with poor prognosis. Here we examine effects of MDSCs on lymphangioleiomyomatosis (LAM), a rare disease occurring almost exclusively in women whereby estrogen-sensitive metastatic TSC2-null tumors grow throughout the lungs, markedly reducing pulmonary function. The LAM cell origin remains unknown; however, previous work demonstrated that Tsc2 inactivation in the mouse uterus induced estrogen-dependent myometrial tumors with nearly all features of LAM. Half of these animals developed metastatic myometrial tumors in the lungs, suggesting that LAM cells might originate from the myometrium, possibly explaining its overwhelming female prevalence and estrogen-sensitivity. Here we report that MDSC levels, and in particular granulocytic myeloid cell levels, are elevated in the periphery and in tumors of uterine-specific Tsc2-null mice. Importantly, MDSC depletion or inhibition of their recruitment impairs myometrial tumor growth. RNA and protein analysis of Tsc2-null myometrial tumors and xenografts demonstrate high expression and activity of the serine protease neutrophil elastase (NE), with selective qPCR studies indicating a stromal origin of the NE. Notably, treatment with sivelestat, a known NE inhibitor already approved for human use in some countries, reduces tumor growth similar to MDSC depletion. Furthermore, NE promotes Tsc2-null tumor cell growth, migration, and invasion in vitro. Finally, NE-expressing myeloid cells are present throughout the lungs of LAM patients but not controls. These data suggest that NE derived from granulocytic myeloid cells might directly promote LAM tumor cell progression and could be a novel therapeutic target for LAM.
    MeSH term(s) Animals ; Cell Proliferation ; Humans ; Leukocyte Elastase/metabolism ; Lymphangioleiomyomatosis/metabolism ; Mice ; Myeloid Cells/metabolism ; Rats ; Tuberous Sclerosis Complex 2 Protein/genetics
    Chemical Substances Tuberous Sclerosis Complex 2 Protein ; Leukocyte Elastase (EC 3.4.21.37)
    Language English
    Publishing date 2020-01-03
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 1218450-0
    ISSN 1479-6821 ; 1351-0088
    ISSN (online) 1479-6821
    ISSN 1351-0088
    DOI 10.1530/ERC-19-0431
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Spatial transcriptomics stratifies psoriatic disease severity by emergent cellular ecosystems.

    Castillo, Rochelle L / Sidhu, Ikjot / Dolgalev, Igor / Chu, Tinyi / Prystupa, Aleksandr / Subudhi, Ipsita / Yan, Di / Konieczny, Piotr / Hsieh, Brandon / Haberman, Rebecca H / Selvaraj, Shanmugapriya / Shiomi, Tomoe / Medina, Rhina / Girija, Parvathy Vasudevanpillai / Heguy, Adriana / Loomis, Cynthia A / Chiriboga, Luis / Ritchlin, Christopher / Garcia-Hernandez, Maria De La Luz /
    Carucci, John / Meehan, Shane A / Neimann, Andrea L / Gudjonsson, Johann E / Scher, Jose U / Naik, Shruti

    Science immunology

    2023  Volume 8, Issue 84, Page(s) eabq7991

    Abstract: Whereas the cellular and molecular features of human inflammatory skin diseases are well characterized, their tissue context and systemic impact remain poorly understood. We thus profiled human psoriasis (PsO) as a prototypic immune-mediated condition ... ...

    Abstract Whereas the cellular and molecular features of human inflammatory skin diseases are well characterized, their tissue context and systemic impact remain poorly understood. We thus profiled human psoriasis (PsO) as a prototypic immune-mediated condition with a high predilection for extracutaneous involvement. Spatial transcriptomics (ST) analyses of 25 healthy, active lesion, and clinically uninvolved skin biopsies and integration with public single-cell transcriptomics data revealed marked differences in immune microniches between healthy and inflamed skin. Tissue-scale cartography further identified core disease features across all active lesions, including the emergence of an inflamed suprabasal epidermal state and the presence of B lymphocytes in lesional skin. Both lesional and distal nonlesional samples were stratified by skin disease severity and not by the presence of systemic disease. This segregation was driven by macrophage-, fibroblast-, and lymphatic-enriched spatial regions with gene signatures associated with metabolic dysfunction. Together, these findings suggest that mild and severe forms of PsO have distinct molecular features and that severe PsO may profoundly alter the cellular and metabolic composition of distal unaffected skin sites. In addition, our study provides a valuable resource for the research community to study spatial gene organization of healthy and inflamed human skin.
    MeSH term(s) Humans ; Ecosystem ; Transcriptome ; Skin/pathology ; Psoriasis/genetics ; Patient Acuity
    Language English
    Publishing date 2023-06-02
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, N.I.H., Extramural
    ISSN 2470-9468
    ISSN (online) 2470-9468
    DOI 10.1126/sciimmunol.abq7991
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  7. Article ; Online: Antigen-specific B cells direct T follicular-like helper cells into lymphoid follicles to mediate Mycobacterium tuberculosis control.

    Swanson, Rosemary V / Gupta, Ananya / Foreman, Taylor W / Lu, Lan / Choreno-Parra, Jose Alberto / Mbandi, Stanley Kimbung / Rosa, Bruce A / Akter, Sadia / Das, Shibali / Ahmed, Mushtaq / Garcia-Hernandez, Maria de la Luz / Singh, Dhiraj K / Esaulova, Ekaterina / Artyomov, Maxim N / Gommerman, Jennifer / Mehra, Smriti / Zuniga, Joaquin / Mitreva, Makedonka / Scriba, Thomas J /
    Rangel-Moreno, Javier / Kaushal, Deepak / Khader, Shabaana A

    Nature immunology

    2023  Volume 24, Issue 5, Page(s) 855–868

    Abstract: Tuberculosis (TB), caused by Mycobacterium tuberculosis (Mtb), is a global cause of death. Granuloma-associated lymphoid tissue (GrALT) correlates with protection during TB, but the mechanisms of protection are not understood. During TB, the ... ...

    Abstract Tuberculosis (TB), caused by Mycobacterium tuberculosis (Mtb), is a global cause of death. Granuloma-associated lymphoid tissue (GrALT) correlates with protection during TB, but the mechanisms of protection are not understood. During TB, the transcription factor IRF4 in T cells but not B cells is required for the generation of the T
    MeSH term(s) Mice ; Animals ; Mycobacterium tuberculosis ; T-Lymphocytes, Helper-Inducer ; B-Lymphocytes ; Lymphoid Tissue ; Germinal Center ; Transcription Factors ; Tuberculosis
    Chemical Substances Transcription Factors
    Language English
    Publishing date 2023-04-03
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2016987-5
    ISSN 1529-2916 ; 1529-2908
    ISSN (online) 1529-2916
    ISSN 1529-2908
    DOI 10.1038/s41590-023-01476-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Bi-Reporter Vaccinia Virus for Tracking Viral Infections

    Chiem, Kevin / Lorenzo, Maria M / Rangel-Moreno, Javier / Garcia-Hernandez, Maria De La Luz / Park, Jun-Gyu / Nogales, Aitor / Blasco, Rafael / Martínez-Sobrido, Luis

    Microbiology spectrum

    2021  Volume 9, Issue 3, Page(s) e0160121

    Abstract: Recombinant viruses expressing reporter genes allow visualization and quantification of viral infections and can be used as valid surrogates to identify the presence of the virus in infected cells and animal models. However, one of the limitations of ... ...

    Abstract Recombinant viruses expressing reporter genes allow visualization and quantification of viral infections and can be used as valid surrogates to identify the presence of the virus in infected cells and animal models. However, one of the limitations of recombinant viruses expressing reporter genes is the use of either fluorescent or luciferase proteins that are used alternatively for different purposes. Vaccinia virus (VV) is widely used as a viral vector, including recombinant (r)VV singly expressing either fluorescent or luciferase reporter genes that are useful for specific purposes. In this report, we engineered two novel rVV stably expressing both fluorescent (Scarlet or GFP) and luciferase (Nluc) reporter genes from different loci in the viral genome.
    MeSH term(s) Animals ; Cell Line ; Female ; Fluorescence ; Gene Expression ; Genes, Reporter ; Genome, Viral ; Humans ; In Vitro Techniques ; Lung/diagnostic imaging ; Lung/pathology ; Mice ; Mice, Inbred BALB C ; Staining and Labeling ; Vaccines, Synthetic ; Vaccinia virus/genetics ; Virus Diseases/pathology ; Virus Diseases/prevention & control ; Virus Replication
    Chemical Substances Vaccines, Synthetic
    Language English
    Publishing date 2021-11-24
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2807133-5
    ISSN 2165-0497 ; 2165-0497
    ISSN (online) 2165-0497
    ISSN 2165-0497
    DOI 10.1128/Spectrum.01601-21
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  9. Article ; Online: Small Molecule Inhibitors of Nuclear Export and the Amelioration of Lupus by Modulation of Plasma Cell Generation and Survival.

    Rangel-Moreno, Javier / Garcia-Hernandez, Maria de la Luz / Owen, Teresa / Barnard, Jennifer / Becerril-Villanueva, Enrique / Kashyap, Trinayan / Argueta, Christian / Gamboa-Dominguez, Armando / Tamir, Sharon / Landesman, Yosef / Goldman, Bruce I / Ritchlin, Christopher T / Anolik, Jennifer H

    Arthritis & rheumatology (Hoboken, N.J.)

    2022  Volume 74, Issue 8, Page(s) 1363–1375

    Abstract: Objective: To investigate the hypothesis that selective inhibitors of nuclear export (SINE compounds), recently approved for treatment of refractory plasma cell (PC) malignancy, may have potential in the treatment of lupus.: Methods: Female NZB/NZW ... ...

    Abstract Objective: To investigate the hypothesis that selective inhibitors of nuclear export (SINE compounds), recently approved for treatment of refractory plasma cell (PC) malignancy, may have potential in the treatment of lupus.
    Methods: Female NZB/NZW mice were treated with the SINE compound KPT-350 or vehicle control. Tissue specimens were harvested and analyzed by flow cytometry, using standard markers. Nephritis was monitored by determining the proteinuria score and by histologic analysis of kidney specimens. Serum anti-double-stranded DNA (anti-dsDNA) levels were measured by enzyme-linked immunosorbent assay, and total numbers of IgG-secreting and dsDNA-specific antibody-secreting cells were assessed by enzyme-linked immunospot assay.
    Results: KPT-350 abrogated murine lupus nephritis at both early and late stages of the disease and rapidly impaired generation of autoreactive PCs in germinal centers (GCs). SINE compounds inhibited the production of NF-κB-driven homeostatic chemokines by stromal cells, altering splenic B and T cell strategic positioning and significantly reducing follicular helper T cell, GC B cell, and autoreactive PC counts. KPT-350 also decreased levels of cytokines and chemokines involved in PC survival and recruitment in the kidney of lupus-prone mice. Exportin 1, the target of SINE compounds, was detected in GCs of human tonsils, splenic B cells of lupus patients, and multiple B cell subsets in the kidneys of patients with lupus nephritis.
    Conclusion: Collectively, our results provide support for the therapeutic potential of SINE compounds, via their targeting of several molecular and cellular pathways critical in lupus pathogenesis, including autoantibody production by plasma cells.
    MeSH term(s) Active Transport, Cell Nucleus ; Animals ; Autoantibodies ; Disease Models, Animal ; Enzyme-Linked Immunospot Assay ; Female ; Humans ; Lupus Erythematosus, Systemic/drug therapy ; Lupus Nephritis ; Mice ; Mice, Inbred NZB ; Plasma Cells
    Chemical Substances Autoantibodies
    Language English
    Publishing date 2022-06-28
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2756371-6
    ISSN 2326-5205 ; 2326-5191
    ISSN (online) 2326-5205
    ISSN 2326-5191
    DOI 10.1002/art.42128
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  10. Article: A Unique Cellular and Molecular Microenvironment Is Present in Tertiary Lymphoid Organs of Patients with Spontaneous Prostate Cancer Regression.

    García-Hernández, María de la Luz / Uribe-Uribe, Norma Ofelia / Espinosa-González, Ricardo / Kast, W Martin / Khader, Shabaana A / Rangel-Moreno, Javier

    Frontiers in immunology

    2017  Volume 8, Page(s) 563

    Abstract: Objective: Multiple solid cancers contain tertiary lymphoid organs (TLO). However, it is unclear whether they promote tumor rejection, facilitate tumor evasion, or simply whether they are a byproduct of chronic inflammation. We hypothesize that although ...

    Abstract Objective: Multiple solid cancers contain tertiary lymphoid organs (TLO). However, it is unclear whether they promote tumor rejection, facilitate tumor evasion, or simply whether they are a byproduct of chronic inflammation. We hypothesize that although chronic inflammation induces TLO formation, the tumor milieu can modulate TLO organization and functions in prostate cancer. Therefore, our study seeks to elucidate the cellular and molecular signatures in unique prostatectomy specimens from evanescent carcinoma patients to identify markers of cancer regression, which could be harnessed to modulate local immunosuppression or potentially enhance TLO function.
    Methods: We used multicolor immunofluorescence to stain prostate tissues, collected at different stages of cancer progression (prostatic intraepithelial neoplasia, intermediate and advanced cancer) or from patients with evanescent prostate carcinoma. Tissues were stained with antibodies specific for pro-inflammatory molecules (cyclooxygenase 2, CXCL10, IL17), tumor-infiltrating immune cells (mature DC-LAMP
    Results: Generally, inflammatory cells are located at the margins of tumors. Unexpectedly, we found TLO within prostate tumors from patients at different stages of cancer and in unique samples from patients with spontaneous cancer remission. In evanescent prostate carcinomas, accumulation of Treg was compromised, while Tbet
    Conclusion: Collectively, our results suggest that COX2 and Treg are attractive therapeutic targets that can be harnessed to enhance TLO-driven tumor immunity against prostate cancer. Specially, the presence of HEV and lymphatics indicate that TLO can be used as a platform for delivery of cell-based and/or COX2 blocking therapies to improve control of tumor growth in prostate cancer.
    Language English
    Publishing date 2017
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2606827-8
    ISSN 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2017.00563
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