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  1. Article ; Online: Antimicrobial peptides for the treatment of pulmonary tuberculosis, allies or foes?

    Rivas-Santiago, Bruno / Torres-Juarez, Flor

    Current pharmaceutical design

    2018  Volume 24, Issue 10, Page(s) 1138–1147

    Abstract: Tuberculosis is an ancient disease that has become a serious public health issue in recent years, although increasing incidence has been controlled, deaths caused by Mycobacterium tuberculosis have been accentuated due to the emerging of multi-drug ... ...

    Abstract Tuberculosis is an ancient disease that has become a serious public health issue in recent years, although increasing incidence has been controlled, deaths caused by Mycobacterium tuberculosis have been accentuated due to the emerging of multi-drug resistant strains and the comorbidity with diabetes mellitus and HIV. This situation is threatening the goals of World Health Organization (WHO) to eradicate tuberculosis in 2035. WHO has called for the creation of new drugs as an alternative for the treatment of pulmonary tuberculosis, among the plausible molecules that can be used are the Antimicrobial Peptides (AMPs). These peptides have demonstrated remarkable efficacy to kill mycobacteria in vitro and in vivo in experimental models, nevertheless, these peptides not only have antimicrobial activity but also have a wide variety of functions such as angiogenesis, wound healing, immunomodulation and other well-described roles into the human physiology. Therapeutic strategies for tuberculosis using AMPs must be well thought prior to their clinical use; evaluating comorbidities, family history and risk factors to other diseases, since the wide function of AMPs, they could lead to collateral undesirable effects.
    MeSH term(s) Animals ; Antimicrobial Cationic Peptides/chemistry ; Antimicrobial Cationic Peptides/pharmacology ; Antitubercular Agents/chemistry ; Antitubercular Agents/pharmacology ; Humans ; Microbial Sensitivity Tests ; Mycobacterium tuberculosis/drug effects ; Tuberculosis, Pulmonary/drug therapy
    Chemical Substances Antimicrobial Cationic Peptides ; Antitubercular Agents
    Language English
    Publishing date 2018-03-28
    Publishing country United Arab Emirates
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 1304236-1
    ISSN 1873-4286 ; 1381-6128
    ISSN (online) 1873-4286
    ISSN 1381-6128
    DOI 10.2174/1381612824666180327162357
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Co-infection of mice with SARS-CoV-2 and

    Baker, Paul J / Amaral, Eduardo P / Castro, Ehydel / Bohrer, Andrea C / Torres-Juárez, Flor / Jordan, Cassandra M / Nelson, Christine E / Barber, Daniel L / Johnson, Reed F / Hilligan, Kerry L / Mayer-Barber, Katrin D

    Frontiers in immunology

    2023  Volume 14, Page(s) 1240419

    Abstract: Viral co-infections have been implicated in worsening tuberculosis (TB) and during the COVID-19 pandemic, the global rate of TB-related deaths has increased for the first time in over a decade. We and others have previously shown that a resolved prior or ...

    Abstract Viral co-infections have been implicated in worsening tuberculosis (TB) and during the COVID-19 pandemic, the global rate of TB-related deaths has increased for the first time in over a decade. We and others have previously shown that a resolved prior or concurrent influenza A virus infection in
    MeSH term(s) Mice ; Animals ; Humans ; Mycobacterium tuberculosis ; SARS-CoV-2 ; Coinfection ; Pandemics ; COVID-19 ; Mice, Transgenic ; Interferon Type I ; Mice, Inbred C57BL
    Chemical Substances K-18 conjugate ; Interferon Type I
    Language English
    Publishing date 2023-09-01
    Publishing country Switzerland
    Document type Journal Article ; Research Support, N.I.H., Intramural
    ZDB-ID 2606827-8
    ISSN 1664-3224 ; 1664-3224
    ISSN (online) 1664-3224
    ISSN 1664-3224
    DOI 10.3389/fimmu.2023.1240419
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Inhibition of Tumor Growth and Metastasis by Newcastle Disease Virus Strain P05 in a Breast Cancer Mouse Model.

    Ortega-Rivera, Oscar Antonio / Gallegos-Alcalá, Pamela / Jiménez, Mariela / Quintanar, J Luis / Torres-Juarez, Flor / Rivas-Santiago, Bruno / Del Toro-Arreola, Susana / Salinas, Eva

    Journal of breast cancer

    2023  Volume 26, Issue 2, Page(s) 186–200

    Abstract: Purpose: Conventional therapies and surgery remain the standard treatment for breast cancer. However, combating the eventual development of metastasis is still a challenge. Newcastle disease virus (NDV) is one of the various species of viruses under ... ...

    Abstract Purpose: Conventional therapies and surgery remain the standard treatment for breast cancer. However, combating the eventual development of metastasis is still a challenge. Newcastle disease virus (NDV) is one of the various species of viruses under clinical evaluation as a vector for oncolytic, gene-, and immune-stimulating therapies. The purpose of this study was to evaluate the antitumor activity of a recombinant NDV (rNDV-P05) in a breast cancer murine model.
    Methods: Tumors were induced by injecting the cellular suspension (4T1 cell line) subcutaneously. The virus strain P05 was applied three times at intervals of seven days, starting seven days after tumor induction, and was completed 21 days later. Determination of tumor weight, spleen index, and lung metastasis were done after sacrificing the mice. Serum levels of interferon (IFN)-α, IFN-γ, tumor necrosis factor (TNF)-α, and TNF-related apoptosis-inducing ligand (TRAIL) were quantified by enzyme-linked immunosorbent assay. CD8+ infiltrated cells were analyzed by immunofluorescence.
    Results: rNDV-P05 showed a route-of-administration-dependent effect, demonstrating that the systemic administration of the virus significantly reduces the tumor mass and volume, spleen index, and abundance of metastatic clonogenic colonies in lung tissue, and increases the inhibition rate of the tumor. The intratumoral administration of rNDV-P05 was ineffective for all the parameters evaluated. Antitumor and antimetastatic capability of rNDV-P05 is mediated, at least partially, through its immune-stimulatory effect on the upregulation of TNF-α, TRAIL, IFN-α, and IFN-γ, and its ability to recruit CD8+ T cells into tumor tissue.
    Conclusion: Systemic treatment with rNDV-P05 decreases the tumoral parameters in the breast cancer murine model.
    Language English
    Publishing date 2023-02-17
    Publishing country Korea (South)
    Document type Journal Article
    ZDB-ID 2559753-X
    ISSN 2092-9900 ; 1738-6756
    ISSN (online) 2092-9900
    ISSN 1738-6756
    DOI 10.4048/jbc.2023.26.e9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Antimicrobial Peptides-based Nanostructured Delivery Systems: An Approach for Leishmaniasis Treatment.

    Rodríguez-Carlos, Adrian / Martinez-Gutierrez, Fidel / Torres-Juarez, Flor / Rivas-Santiago, Bruno

    Current pharmaceutical design

    2019  Volume 25, Issue 14, Page(s) 1593–1603

    Abstract: Background: Leishmaniasis is a major health problem mainly in tropical and subtropical areas worldwide, although in the last decades it has been treated with the use of conventional drugs such as amphotericin, the emergence of multidrug-resistant ... ...

    Abstract Background: Leishmaniasis is a major health problem mainly in tropical and subtropical areas worldwide, although in the last decades it has been treated with the use of conventional drugs such as amphotericin, the emergence of multidrug-resistant strains has raised a warning signal to the public health systems thus a new call for the creation of new leishmanicidal drugs is needed.
    Methods: The goal of this review was to explore the potential use of antimicrobial peptides-based nanostructured delivery systems as an approach for leishmaniasis treatment.
    Results: Within these new potential drugs, human host defense peptides (HDP) can be included given their remarkable antimicrobial activity and their outstanding immunomodulatory functions for the therapy of leishmaniasis.
    Conclusion: Though several approaches have been done using these peptides, new ways for delivering HDPs need to be analyzed, such is the case for nanotechnology.
    MeSH term(s) Antimicrobial Cationic Peptides/administration & dosage ; Drug Delivery Systems ; Humans ; Leishmaniasis/therapy ; Nanostructures
    Chemical Substances Antimicrobial Cationic Peptides
    Language English
    Publishing date 2019-07-01
    Publishing country United Arab Emirates
    Document type Journal Article ; Review
    ZDB-ID 1304236-1
    ISSN 1873-4286 ; 1381-6128
    ISSN (online) 1873-4286
    ISSN 1381-6128
    DOI 10.2174/1381612825666190628152842
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: The inflammatory microenvironment of the lung at the time of infection governs innate control of SARS-CoV-2 replication.

    Baker, Paul J / Bohrer, Andrea C / Castro, Ehydel / Amaral, Eduardo P / Snow-Smith, Maryonne / Torres-Juárez, Flor / Gould, Sydnee T / Queiroz, Artur T L / Fukutani, Eduardo R / Jordan, Cassandra M / Khillan, Jaspal S / Cho, Kyoungin / Barber, Daniel L / Andrade, Bruno B / Johnson, Reed F / Hilligan, Kerry L / Mayer-Barber, Katrin D

    bioRxiv : the preprint server for biology

    2024  

    Abstract: SARS-CoV-2 infection leads to vastly divergent clinical outcomes ranging from asymptomatic infection to fatal disease. Co-morbidities, sex, age, host genetics and vaccine status are known to affect disease severity. Yet, how the inflammatory milieu of ... ...

    Abstract SARS-CoV-2 infection leads to vastly divergent clinical outcomes ranging from asymptomatic infection to fatal disease. Co-morbidities, sex, age, host genetics and vaccine status are known to affect disease severity. Yet, how the inflammatory milieu of the lung at the time of SARS-CoV-2 exposure impacts the control of viral replication remains poorly understood. We demonstrate here that immune events in the mouse lung closely preceding SARS-CoV-2 infection significantly impact viral control and we identify key innate immune pathways required to limit viral replication. A diverse set of pulmonary inflammatory stimuli, including resolved antecedent respiratory infections with
    Language English
    Publishing date 2024-03-27
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2024.03.27.586885
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Retinoic acid induces antimicrobial peptides and cytokines leading to Mycobacterium tuberculosis elimination in airway epithelial cells.

    Jacobo-Delgado, Yolanda M / Torres-Juarez, Flor / Rodríguez-Carlos, Adrián / Santos-Mena, Alan / Enciso-Moreno, José E / Rivas-Santiago, Cesar / Diamond, Gill / Rivas-Santiago, Bruno

    Peptides

    2021  Volume 142, Page(s) 170580

    Abstract: Tuberculosis (TB) is the leading cause of death by a single infectious agent, Mycobacterium tuberculosis (Mtb). Alveolar macrophages and respiratory epithelial cells are the first cells exposed to Mtb during the primary infection, once these cells are ... ...

    Abstract Tuberculosis (TB) is the leading cause of death by a single infectious agent, Mycobacterium tuberculosis (Mtb). Alveolar macrophages and respiratory epithelial cells are the first cells exposed to Mtb during the primary infection, once these cells are activated, secrete cytokines and antimicrobial peptides that are associated with the Mtb contention and elimination. Vitamins are micronutrients that function as boosters on the innate immune system, however, is unclear whether they have any protective activity during Mtb infection. Thus, we investigated the role of vitamin A (retinoic acid), vitamin C (ascorbic acid), vitamin D (calcitriol), and vitamin E (alfa-tocopherol) as inductors of molecules related to mycobacterial infection in macrophages and epithelial cells. Our results showed that retinoic acid promotes the expression of pro- and anti-inflammatory molecules such as Thymic stromal lymphopoietin (TSLP), β-defensin-2, IL-1β, CCL20, β-defensin-3, Cathelicidin LL-37, TGF-β, and RNase 7, whereas calcitriol, ascorbic acid, and α-tocopherol lead to an anti-inflammatory response. Treatment of Mtb-infected epithelial cells and macrophage-like cells with the vitamins showed a differential response, where calcitriol reduced Mtb in macrophages, while retinoic acid reduced infection in epithelial cells. Thereby, we propose that a combination of calcitriol and retinoic acid supplementation can drive the immune response, and promotes the Mtb elimination by increasing the expression of antimicrobial peptides and cytokines, while simultaneously modulating inflammation.
    MeSH term(s) Antimicrobial Peptides/pharmacology ; Antineoplastic Agents/pharmacology ; Autophagy ; Bronchi/drug effects ; Bronchi/metabolism ; Bronchi/microbiology ; Bronchi/pathology ; Cells, Cultured ; Cytokines/metabolism ; Epithelial Cells/drug effects ; Epithelial Cells/metabolism ; Epithelial Cells/microbiology ; Epithelial Cells/pathology ; Humans ; Macrophages/drug effects ; Macrophages/metabolism ; Macrophages/microbiology ; Macrophages/pathology ; Mycobacterium tuberculosis/drug effects ; Tretinoin/pharmacology ; Tuberculosis/drug therapy ; Tuberculosis/metabolism ; Tuberculosis/microbiology ; Tuberculosis/pathology
    Chemical Substances Antimicrobial Peptides ; Antineoplastic Agents ; Cytokines ; Tretinoin (5688UTC01R)
    Language English
    Publishing date 2021-05-24
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 769028-9
    ISSN 1873-5169 ; 0196-9781
    ISSN (online) 1873-5169
    ISSN 0196-9781
    DOI 10.1016/j.peptides.2021.170580
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Nicotine associates to intracellular

    de Haro-Acosta, Jeny / Jacobo-Delgado, Yolanda M / Rodríguez-Carlos, Adrian / Torres-Juárez, Flor / Araujo, Zaida / Serrano, Carmen J / Gonzalez-Curiel, Irma / Hernández-Pando, Rogelio / Salinas, Eva / Rivas-Santiago, Bruno

    Experimental lung research

    2021  Volume 47, Issue 10, Page(s) 487–493

    Abstract: Tobacco consumption is related to an increased risk to develop tuberculosis. Antimicrobial peptides are essential molecules in the response ... ...

    Abstract Tobacco consumption is related to an increased risk to develop tuberculosis. Antimicrobial peptides are essential molecules in the response to
    MeSH term(s) Antimicrobial Peptides ; Humans ; Macrophages ; Mycobacterium tuberculosis/genetics ; Nicotine/pharmacology ; Tuberculosis
    Chemical Substances Antimicrobial Peptides ; Nicotine (6M3C89ZY6R)
    Language English
    Publishing date 2021-11-22
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 603791-4
    ISSN 1521-0499 ; 0190-2148
    ISSN (online) 1521-0499
    ISSN 0190-2148
    DOI 10.1080/01902148.2021.2006829
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Platelets immune response against Mycobacterium tuberculosis infection.

    Torres-Juarez, Flor / Trejo-Martínez, Luis A / Layseca-Espinosa, Esther / Leon-Contreras, Juan C / Enciso-Moreno, Jose A / Hernandez-Pando, Rogelio / Rivas-Santiago, Bruno

    Microbial pathogenesis

    2021  Volume 153, Page(s) 104768

    Abstract: Tuberculosis (TB) is the first cause of death by a single infectious agent. Previous reports have highlighted the presence of platelets within Tb granulomas, albeit the immune-associated platelet response to Mycobacterium tuberculosis (Mtb) has not been ... ...

    Abstract Tuberculosis (TB) is the first cause of death by a single infectious agent. Previous reports have highlighted the presence of platelets within Tb granulomas, albeit the immune-associated platelet response to Mycobacterium tuberculosis (Mtb) has not been deeply studied. Our results showed that platelets are recruited into the granuloma in the late stages of tuberculosis. Furthermore, electron-microscopy studies showed that platelets can internalize Mtb and produce host defense peptides (HDPs), such as RNase 7, HBD2 and hPF-4 that bind to the internalized Mtb. Mtb-infected platelets exhibited higher transcription and secretion of IL-1β and TNF-α, whereas IL-10 and IL-6 protein levels decreased. These results suggest that platelets participate in the immune response against Mtb through HDPs and cytokines production.
    MeSH term(s) Blood Platelets ; Cytokines ; Granuloma ; Humans ; Immunity ; Mycobacterium tuberculosis ; Tuberculosis
    Chemical Substances Cytokines
    Language English
    Publishing date 2021-01-29
    Publishing country England
    Document type Journal Article
    ZDB-ID 632772-2
    ISSN 1096-1208 ; 0882-4010
    ISSN (online) 1096-1208
    ISSN 0882-4010
    DOI 10.1016/j.micpath.2021.104768
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Retinoic acid promotes Mycobacterium tuberculosis elimination inducing antimicrobial peptides and cytokines

    Jacobo-Delgado, Yolanda M / Torres-Juarez, Flor / Alonso-Macias, Jacqueline / deHaro-Acosta, Jeny / Rodríguez-Carlos, Adrián / Rivas-Santiago, Cesar / Santos-Mena, Alan / Enciso-Moreno, José E / Marin-Luevano, Sara P / Rivas-Santiago, Bruno

    Peptides. 2021 May 19,

    2021  

    Abstract: Tuberculosis (TB) is the leading cause of death by a single infectious agent, Mycobacterium tuberculosis (Mtb). The alveolar macrophages and epithelial cells are the first cells exposed to Mtb during the primary infection, once these cells are activated, ...

    Abstract Tuberculosis (TB) is the leading cause of death by a single infectious agent, Mycobacterium tuberculosis (Mtb). The alveolar macrophages and epithelial cells are the first cells exposed to Mtb during the primary infection, once these cells are activated, secrete soluble factors such as cytokines and antimicrobial peptides that are associated with the Mtb contention and elimination. The vitamins are micronutrients that function as boosters on the innate immune system, nevertheless, is unclear whether they have any protective activity during Mtb infection. Thus, we investigated the role of ascorbic acid, calcitriol (vitamin D), retinoic acid, and alfa-tocopherol as inductors of molecules related to mycobacterial contention in macrophages and epithelial cells. We observed that retinoic acid enhances the Mtb elimination in epithelial cells, thus we decided to explore which molecules were involved. Our results showed that retinoic acid promotes the expression of pro- and anti-inflammatory molecules such as TSLP, β-defensin-2, IL-1β, CCL20, β-defensin-3, Cathelicidin LL-37, TGF-β, and RNase 7, whereas vitamin D, ascorbic acid, and α-tocopherol shows an anti-inflammatory response. Thereby we propose that retinoic acid supplementation drives the immune response and promotes the Mtb elimination by increasing the expression of distinct soluble molecules, whereas modulates the inflammation response to avoid damage to host tissues.
    Keywords Mycobacterium tuberculosis ; alpha-tocopherol ; ascorbic acid ; calcitriol ; cathelicidins ; death ; epithelium ; immune response ; inflammation ; innate immunity ; macrophages ; pathogens ; retinoic acid ; ribonucleases ; tuberculosis
    Language English
    Dates of publication 2021-0519
    Publishing place Elsevier Inc.
    Document type Article
    Note NAL-AP-2-clean ; Pre-press version
    ZDB-ID 769028-9
    ISSN 1873-5169 ; 0196-9781
    ISSN (online) 1873-5169
    ISSN 0196-9781
    DOI 10.1016/j.peptides.2021.170580
    Database NAL-Catalogue (AGRICOLA)

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  10. Article ; Online: The inflammatory microenvironment of the lung at the time of infection governs innate control of SARS-CoV-2 replication

    Baker, Paul J / Bohrer, Andrea C / Castro, Ehydel / Amaral, Eduardo P / Snow-Smith, Maryonne / Torres-Juarez, Flor / Gould, Sydnee T / Queiroz, Artur TL / Fukutani, Eduardo R / Jordan, Cassandra M / Khillan, Jaspal S / Cho, Kyoungin / Barber, Daniel L / Andrade, Bruno B / Johnson, Reed F / Hilligan, Kerry L / Mayer-Barber, Katrin D

    bioRxiv

    Abstract: SARS-CoV-2 infection leads to vastly divergent clinical outcomes ranging from asymptomatic infection to fatal disease. Co-morbidities, sex, age, host genetics and vaccine status are known to affect disease severity. Yet, how the inflammatory milieu of ... ...

    Abstract SARS-CoV-2 infection leads to vastly divergent clinical outcomes ranging from asymptomatic infection to fatal disease. Co-morbidities, sex, age, host genetics and vaccine status are known to affect disease severity. Yet, how the inflammatory milieu of the lung at the time of SARS-CoV-2 exposure impacts the control of viral replication remains poorly understood. We demonstrate here that immune events in the mouse lung closely preceding SARS-CoV-2 infection significantly impact viral control and we identify key innate immune pathways required to limit viral replication. A diverse set of pulmonary inflammatory stimuli, including resolved antecedent respiratory infections with S. aureus or influenza, ongoing pulmonary M. tuberculosis infection, ovalbumin/alum-induced asthma or airway administration of defined TLR ligands and recombinant cytokines, all establish an antiviral state in the lung that restricts SARS-CoV-2 replication upon infection. In addition to antiviral type I interferons, the broadly inducible inflammatory cytokines TNFα and IL-1 precondition the lung for enhanced viral control. Collectively, our work shows that SARS-CoV-2 may benefit from an immunologically quiescent lung microenvironment and suggests that heterogeneity in pulmonary inflammation that precedes or accompanies SARS-CoV-2 exposure may be a significant factor contributing to the population-wide variability in COVID-19 disease outcomes.
    Keywords covid19
    Language English
    Publishing date 2024-03-27
    Publisher Cold Spring Harbor Laboratory
    Document type Article ; Online
    DOI 10.1101/2024.03.27.586885
    Database COVID19

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