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  1. Article ; Online: Two sides of the same coin: Protective versus pathogenic CD4

    Oja, Anna E / van Lier, René A W / Hombrink, Pleun

    Science immunology

    2022  Volume 7, Issue 70, Page(s) eabf9393

    Abstract: The ability of the adaptive immune system to form memory is key to providing protection against secondary infections. Resident memory T cells ( ... ...

    Abstract The ability of the adaptive immune system to form memory is key to providing protection against secondary infections. Resident memory T cells (T
    MeSH term(s) CD4-Positive T-Lymphocytes ; COVID-19 ; Humans ; Immunologic Memory ; Memory T Cells ; SARS-CoV-2
    Language English
    Publishing date 2022-04-08
    Publishing country United States
    Document type Journal Article ; Review ; Research Support, Non-U.S. Gov't
    ISSN 2470-9468
    ISSN (online) 2470-9468
    DOI 10.1126/sciimmunol.abf9393
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: T-cells in human trigeminal ganglia express canonical tissue-resident memory T-cell markers.

    Unger, Peter-Paul A / Oja, Anna E / Khemai-Mehraban, Tamana / Ouwendijk, Werner J D / Hombrink, Pleun / Verjans, Georges M G M

    Journal of neuroinflammation

    2022  Volume 19, Issue 1, Page(s) 249

    Abstract: Background: Trigeminal ganglia (TG) neurons are the main site of lifelong latent herpes simplex virus type 1 (HSV-1) infection. T-cells in ganglia contribute to long-term control of latent HSV-1 infection, but it is unclear whether these cells are bona ... ...

    Abstract Background: Trigeminal ganglia (TG) neurons are the main site of lifelong latent herpes simplex virus type 1 (HSV-1) infection. T-cells in ganglia contribute to long-term control of latent HSV-1 infection, but it is unclear whether these cells are bona fide tissue-resident memory T-cells (T
    Methods: Peripheral blood mononuclear cells (PBMC; 5 blood donors) were incubated with several commercial tissue digestion enzyme preparations to determine off-target effect on simultaneous detection of 15 specific T-cell subset markers by flow cytometry. Next, optimized enzymatic digestion was applied to ex vivo phenotype T-cells in paired PBMC, normal appearing white matter (NAWM) and TG of 8 deceased brain donors obtained < 9 h post-mortem by flow cytometry. Finally, the phenotypic and functional markers, and spatial orientation of T-cells in relation to neuronal somata, were determined in TG tissue sections of five HSV-1-latently infected individuals by multiparametric in situ analysis.
    Results: Collagenase IV digestion of human nervous tissue was most optimal to obtain high numbers of viable T-cells without disrupting marker surface expression. Compared to blood, majority T-cells in paired NAWM and TG were effector memory T-cells expressing the canonical T
    Conclusions: The human TG represents an immunocompetent environment in which both CD4 and CD8 T
    MeSH term(s) CD8-Positive T-Lymphocytes ; Herpes Simplex ; Herpesviridae Infections ; Herpesvirus 1, Human ; Humans ; Ki-67 Antigen/metabolism ; Leukocyte Common Antigens/metabolism ; Leukocytes, Mononuclear ; Memory T Cells ; Programmed Cell Death 1 Receptor/metabolism ; Trigeminal Ganglion
    Chemical Substances Ki-67 Antigen ; Programmed Cell Death 1 Receptor ; Leukocyte Common Antigens (EC 3.1.3.48)
    Language English
    Publishing date 2022-10-06
    Publishing country England
    Document type Journal Article
    ZDB-ID 2156455-3
    ISSN 1742-2094 ; 1742-2094
    ISSN (online) 1742-2094
    ISSN 1742-2094
    DOI 10.1186/s12974-022-02611-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: GITR shapes humoral immunity by controlling the balance between follicular T helper cells and regulatory T follicular cells.

    Oja, Anna E / Brasser, Giso / Slot, Edith / van Lier, René A W / Pascutti, María F / Nolte, Martijn A

    Immunology letters

    2020  Volume 222, Page(s) 73–79

    Abstract: Follicular helper ... ...

    Abstract Follicular helper CD4
    MeSH term(s) Animals ; B-Lymphocytes/immunology ; B-Lymphocytes/metabolism ; Biomarkers ; Cytokines/metabolism ; Female ; Flow Cytometry ; Fluorescent Antibody Technique ; Gene Expression Regulation ; Germinal Center/immunology ; Germinal Center/metabolism ; Glucocorticoid-Induced TNFR-Related Protein/genetics ; Glucocorticoid-Induced TNFR-Related Protein/metabolism ; Humans ; Immunity, Humoral ; Immunoglobulin Class Switching/genetics ; Male ; Mice ; T-Lymphocytes, Helper-Inducer/immunology ; T-Lymphocytes, Helper-Inducer/metabolism ; T-Lymphocytes, Regulatory/immunology ; T-Lymphocytes, Regulatory/metabolism
    Chemical Substances Biomarkers ; Cytokines ; Glucocorticoid-Induced TNFR-Related Protein ; Tnfrsf18 protein, mouse
    Language English
    Publishing date 2020-04-04
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 445150-8
    ISSN 1879-0542 ; 0165-2478
    ISSN (online) 1879-0542
    ISSN 0165-2478
    DOI 10.1016/j.imlet.2020.03.008
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Dietary Vitamin D Supplementation Is Ineffective in Preventing Murine Cow's Milk Allergy, Irrespective of the Presence of Nondigestible Oligosaccharides.

    Kerperien, JoAnn / Veening-Griffioen, Désirée / Oja, Anna / Wehkamp, Tjalling / Jeurink, Prescilla V / Garssen, Johan / Knippels, Leon M J / Willemsen, Linette E M

    International archives of allergy and immunology

    2020  Volume 181, Issue 12, Page(s) 908–918

    Abstract: ... immunoglobulin (Ig) E and IgG1 levels were measured by means of ELISA. T cell subsets and dendritic cells (DCs ...

    Abstract Introduction: Cow's milk allergy (CMA) is one of the most common food allergies especially early in life. A mixture of nondigestible short-chain galacto-oligosaccharides, long-chain fructo-oligosaccharides, and pectin-derived acidic-oligosaccharides (GFA) may reduce allergy development and allergic symptoms in murine CMA. Recently, vitamin D (VitD) has been suggested to have beneficial effects in reducing allergy as well.
    Objective: In this study, the immune modulatory effect on allergy prevention using the combination of GFA and VitD was investigated.
    Methods: Female C3H/HeOuJ mice were fed a control or GFA-containing diet with depleted, standard (1,000 IU/kg), or supplemented (5,000 IU/kg) VitD content for 2 weeks before and during whey sensitization (n = 10-15). Mice were sensitized 5 times intragastrically with PBS as a control, whey as cow's milk allergen, and/or cholera toxin as adjuvant on a weekly interval. One week after the last sensitization, mice were intradermally challenged in both ear pinnae and orally with whey, subsequently the acute allergic skin response and shock symptoms were measured. After 18 h, terminal blood samples, mesenteric lymph nodes, and spleens were collected. Whey-specific immunoglobulin (Ig) E and IgG1 levels were measured by means of ELISA. T cell subsets and dendritic cells (DCs) were studied using flow cytometry.
    Results: Additional VitD supplementation did not lower the allergic symptoms compared to the standard VitD diet. CMA mice fed the GFA diet supplemented with VitD (GFA VitD+) significantly decreased the acute allergic skin response of whey sensitized mice when compared to the CMA mice fed VitD (VitD+) group (p < 0.05). The effect of GFA was not improved by extra VitD supplementation even though the CMA mice fed the GFA VitD+ diet had a significantly increased percentage of CD103+ DCs compared to the VitD+ group (p < 0.05). The VitD-deprived mice showed a high percentage of severe shock and many reached the humane endpoint; therefore, these groups were not further analyzed.
    Conclusions: High-dose VitD supplementation in mice does not protect against CMA development in the presence or absence of GFA.
    MeSH term(s) Allergens/immunology ; Animals ; Cattle ; Dendritic Cells/immunology ; Diet ; Dietary Supplements ; Disease Models, Animal ; Female ; Humans ; Immunoglobulin E/metabolism ; Mice ; Mice, Inbred C3H ; Milk/immunology ; Milk Hypersensitivity/diet therapy ; Oligosaccharides/therapeutic use ; Skin/pathology ; T-Lymphocytes, Regulatory/immunology ; Vitamin D/therapeutic use
    Chemical Substances Allergens ; Oligosaccharides ; Vitamin D (1406-16-2) ; Immunoglobulin E (37341-29-0)
    Language English
    Publishing date 2020-08-19
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1108932-5
    ISSN 1423-0097 ; 1018-2438
    ISSN (online) 1423-0097
    ISSN 1018-2438
    DOI 10.1159/000509750
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Trends in Adolescent Substance Use: Analysis of HBSC Data for Four Eastern European Countries, 1994-2018.

    Vaičiūnas, Tomas / Žemaitaitytė, Monika / Lange, Shannon / Štelemėkas, Mindaugas / Oja, Leila / Petkevičienė, Janina / Kowalewska, Anna / Pudule, Iveta / Piksööt, Jaanika / Šmigelskas, Kastytis

    International journal of environmental research and public health

    2022  Volume 19, Issue 23

    Abstract: ... challenges in a near future, e.g., use of electronic cigarettes and cannabis use among adolescents. ...

    Abstract The aim of the study was to analyze the trends of adolescent substance use in four eastern European countries over the time period from 1994 to 2018. The four countries in focus were selected based on their shared historical backgrounds and major economic and social transformations experienced.
    Methods: Two decades (1993/1994-2017/2018) of repeated cross-sectional data from the Estonian, Latvian, Lithuanian, and Polish Health Behaviour in School-aged Children survey were used. Data comprised 42,169 school children 15 years of age (9th grade). The following categories of substance use were included: regular alcohol consumption and drunkenness, tobacco smoking, electronic cigarette smoking, and cannabis use. Trends in substance use over time were tested using Jonckheere's trend test.
    Results: Prevalence of substance use among adolescents over time revealed that the Baltic states and Poland have faced relatively different temporal trends. In the Baltic states, there was a general increase during the period of 1994-2002, which was followed by a period of peaking or stability between 2002-2010, and then decreasing trends of these risky behaviors from 2010 onwards. In Poland, the same period had less consistent patterns, with decreasing trends starting much earlier on. The prevalence of cannabis use, which had been measured since 2006, had its own unique pattern with many fluctuations within and between countries.
    Conclusions: The findings on the prevalence of substance use among adolescents from 1994 to 2018 revealed that the Baltic states and Poland have faced relatively different temporal trends. These countries might be facing new public health challenges in a near future, e.g., use of electronic cigarettes and cannabis use among adolescents.
    MeSH term(s) Child ; Adolescent ; Humans ; Electronic Nicotine Delivery Systems ; Cross-Sectional Studies ; Eastern European People ; Substance-Related Disorders/epidemiology ; Alcohol Drinking/epidemiology ; Prevalence ; Adolescent Behavior
    Language English
    Publishing date 2022-11-22
    Publishing country Switzerland
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 2175195-X
    ISSN 1660-4601 ; 1661-7827
    ISSN (online) 1660-4601
    ISSN 1661-7827
    DOI 10.3390/ijerph192315457
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Informing children of their parent's illness

    Charlotte Oja / Tobias Edbom / Anna Nager / Jörgen Månsson / Solvig Ekblad

    PLoS ONE, Vol 15, Iss 5, p e

    A systematic review of intervention programs with child outcomes in all health care settings globally from inception to 2019.

    2020  Volume 0233696

    Abstract: INTRODUCTION:Children are impacted when parents are ill. This systematic review gives an overview of the current state of research and extracts what children and parents found helpful in the interventions aimed at informing children of their parent's ... ...

    Abstract INTRODUCTION:Children are impacted when parents are ill. This systematic review gives an overview of the current state of research and extracts what children and parents found helpful in the interventions aimed at informing children of their parent's illness. METHODS:This review was registered with PROSPERO and conducted in accordance with PRISMA guidelines. Five health and social science databases were searched from inception to November 2019 to identify original, peer-reviewed articles in English describing effective interventions. The authors selected and reviewed the studies independently, and any inconsistencies were resolved by discussion in face-to-face meetings and emails. A descriptive synthesis of evidence-based concepts from quantitative and qualitative studies was conducted. RESULTS:A total of 13 892 titles and 144 full-text articles were reviewed with 32 selected for final inclusion, 21 quantitative, 11 qualitative and no mixed-method studies published from 1993 to November 2019. Most of the research was conducted in mental health, including substance abuse (n = 22), but also in cancer care (n = 6) and HIV care (n = 4). Most studies using quantitative method showed a small to moderately positive statistically significant intervention effect on the child's level of internalized symptoms. Content analysis of the results of studies employing qualitative methodology resulted in four concepts important to both children and parents in interventions (increased knowledge, more open communication, new coping strategies and changed feelings) and three additional concepts important to parents (observed changes in their children's behavior, the parent's increased understanding of their own child and the relief of respite). CONCLUSIONS:In the literature there is evidence of mild to moderate positive effects on the child's level of internalized symptoms as well as concepts important to children and parent's worth noting when trying to bridge the still existing knowledge gaps. In further efforts the challenges of ...
    Keywords Medicine ; R ; Science ; Q
    Subject code 360
    Language English
    Publishing date 2020-01-01T00:00:00Z
    Publisher Public Library of Science (PLoS)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Dried Saliva Spots: A Robust Method for Detecting Streptococcus pneumoniae Carriage by PCR.

    Krone, Cassandra L / Oja, Anna E / van de Groep, Kirsten / Sanders, Elisabeth A M / Bogaert, Debby / Trzciński, Krzysztof

    International journal of molecular sciences

    2016  Volume 17, Issue 3, Page(s) 343

    Abstract: The earliest studies in the late 19th century on Streptococcus pneumoniae (S. pneumoniae) carriage used saliva as the primary specimen. However, interest in saliva declined after the sensitive mouse inoculation method was replaced by conventional culture, ...

    Abstract The earliest studies in the late 19th century on Streptococcus pneumoniae (S. pneumoniae) carriage used saliva as the primary specimen. However, interest in saliva declined after the sensitive mouse inoculation method was replaced by conventional culture, which made isolation of pneumococci from the highly polymicrobial oral cavity virtually impossible. Here, we tested the feasibility of using dried saliva spots (DSS) for studies on pneumococcal carriage. Saliva samples from children and pneumococcus-spiked saliva samples from healthy adults were applied to paper, dried, and stored, with and without desiccant, at temperatures ranging from -20 to 37 °C for up to 35 days. DNA extracted from DSS was tested with quantitative-PCR (qPCR) specifically for S. pneumoniae. When processed immediately after drying, the quantity of pneumococcal DNA detected in spiked DSS from adults matched the levels in freshly spiked raw saliva. Furthermore, pneumococcal DNA was stable in DSS stored with desiccant for up to one month over a broad range of temperatures. There were no differences in the results when spiking saliva with varied pneumococcal strains. The collection of saliva can be a particularly useful in surveillance studies conducted in remote settings, as it does not require trained personnel, and DSS are resilient to various transportation conditions.
    MeSH term(s) Carrier State/diagnosis ; Child ; DNA, Bacterial/genetics ; Desiccation ; Humans ; Population Surveillance ; Real-Time Polymerase Chain Reaction ; Saliva/chemistry ; Saliva/microbiology ; Specimen Handling/methods ; Streptococcus pneumoniae/genetics ; Streptococcus pneumoniae/isolation & purification
    Chemical Substances DNA, Bacterial
    Language English
    Publishing date 2016-03-05
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms17030343
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Functional Heterogeneity of CD4

    Oja, Anna E / Piet, Berber / van der Zwan, David / Blaauwgeers, Hans / Mensink, Mark / de Kivit, Sander / Borst, Jannie / Nolte, Martijn A / van Lier, René A W / Stark, Regina / Hombrink, Pleun

    Frontiers in immunology

    2018  Volume 9, Page(s) 2654

    Abstract: Resident memory T cells ( ... ...

    Abstract Resident memory T cells (T
    MeSH term(s) Aged ; Antigens, CD/metabolism ; CD4-Positive T-Lymphocytes/immunology ; CD4-Positive T-Lymphocytes/metabolism ; CD8-Positive T-Lymphocytes/immunology ; CD8-Positive T-Lymphocytes/metabolism ; Carcinoma, Non-Small-Cell Lung/immunology ; Carcinoma, Non-Small-Cell Lung/metabolism ; Cytokines/metabolism ; Female ; Granzymes/metabolism ; Humans ; Immunologic Memory/genetics ; Integrin alpha Chains/metabolism ; Integrin alpha1/metabolism ; Lung/immunology ; Lung Neoplasms/immunology ; Lung Neoplasms/metabolism ; Lymphocytes, Tumor-Infiltrating/immunology ; Male ; Middle Aged ; Phenotype ; Prognosis ; Programmed Cell Death 1 Receptor/metabolism ; Receptors, CXCR6/metabolism ; Tumor Microenvironment/immunology
    Chemical Substances Antigens, CD ; CXCR6 protein, human ; Cytokines ; Integrin alpha Chains ; Integrin alpha1 ; PDCD1 protein, human ; Programmed Cell Death 1 Receptor ; Receptors, CXCR6 ; alpha E integrins ; GZMB protein, human (EC 3.4.21.-) ; Granzymes (EC 3.4.21.-)
    Language English
    Publishing date 2018-11-16
    Publishing country Switzerland
    Document type Journal Article ; 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.2018.02654
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Blimp-1 induces and Hobit maintains the cytotoxic mediator granzyme B in CD8 T cells.

    Kragten, Natasja A M / Behr, Felix M / Vieira Braga, Felipe A / Remmerswaal, Ester B M / Wesselink, Thomas H / Oja, Anna E / Hombrink, Pleun / Kallies, Axel / van Lier, Rene A W / Stark, Regina / van Gisbergen, Klaas P J M

    European journal of immunology

    2018  Volume 48, Issue 10, Page(s) 1644–1662

    Abstract: CD8 T cells acquire cytotoxic molecules including granzyme B during effector differentiation. Both tissue-resident memory CD8 T cells (Trm) and circulating ... ...

    Abstract CD8 T cells acquire cytotoxic molecules including granzyme B during effector differentiation. Both tissue-resident memory CD8 T cells (Trm) and circulating CD45RA
    MeSH term(s) Animals ; CD8-Positive T-Lymphocytes/immunology ; Cells, Cultured ; Gene Expression Regulation/immunology ; Granzymes/genetics ; Humans ; Immunologic Memory ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Natural Killer T-Cells/immunology ; Positive Regulatory Domain I-Binding Factor 1/genetics ; Positive Regulatory Domain I-Binding Factor 1/immunology ; Transcription Factors/genetics ; Transcription Factors/immunology ; Transcription Factors/metabolism
    Chemical Substances Prdm1 protein, mouse ; Transcription Factors ; ZNF683 protein, human ; Zfp683 protein, mouse ; PRDM1 protein, human (138415-26-6) ; Positive Regulatory Domain I-Binding Factor 1 (EC 2.1.1.-) ; Granzymes (EC 3.4.21.-) ; Gzmb protein, mouse (EC 3.4.21.-)
    Language English
    Publishing date 2018-08-16
    Publishing country Germany
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 120108-6
    ISSN 1521-4141 ; 0014-2980
    ISSN (online) 1521-4141
    ISSN 0014-2980
    DOI 10.1002/eji.201847771
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Trends in Adolescent Substance Use

    Tomas Vaičiūnas / Monika Žemaitaitytė / Shannon Lange / Mindaugas Štelemėkas / Leila Oja / Janina Petkevičienė / Anna Kowalewska / Iveta Pudule / Jaanika Piksööt / Kastytis Šmigelskas

    International Journal of Environmental Research and Public Health, Vol 19, Iss 15457, p

    Analysis of HBSC Data for Four Eastern European Countries, 1994–2018

    2022  Volume 15457

    Abstract: ... challenges in a near future, e.g., use of electronic cigarettes and cannabis use among adolescents. ...

    Abstract The aim of the study was to analyze the trends of adolescent substance use in four eastern European countries over the time period from 1994 to 2018. The four countries in focus were selected based on their shared historical backgrounds and major economic and social transformations experienced. Methods: Two decades (1993/1994–2017/2018) of repeated cross-sectional data from the Estonian, Latvian, Lithuanian, and Polish Health Behaviour in School-aged Children survey were used. Data comprised 42,169 school children 15 years of age (9th grade). The following categories of substance use were included: regular alcohol consumption and drunkenness, tobacco smoking, electronic cigarette smoking, and cannabis use. Trends in substance use over time were tested using Jonckheere’s trend test. Results: Prevalence of substance use among adolescents over time revealed that the Baltic states and Poland have faced relatively different temporal trends. In the Baltic states, there was a general increase during the period of 1994–2002, which was followed by a period of peaking or stability between 2002–2010, and then decreasing trends of these risky behaviors from 2010 onwards. In Poland, the same period had less consistent patterns, with decreasing trends starting much earlier on. The prevalence of cannabis use, which had been measured since 2006, had its own unique pattern with many fluctuations within and between countries. Conclusions: The findings on the prevalence of substance use among adolescents from 1994 to 2018 revealed that the Baltic states and Poland have faced relatively different temporal trends. These countries might be facing new public health challenges in a near future, e.g., use of electronic cigarettes and cannabis use among adolescents.
    Keywords adolescent ; substance use ; trends ; eastern Europe ; HBSC ; Medicine ; R
    Language English
    Publishing date 2022-11-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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