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  1. Article ; Online: Are the B cells cast with the leading part in the Sjogren's syndrome scenario?

    Pers, J O / Youinou, P

    Oral diseases

    2014  Volume 20, Issue 6, Page(s) 529–537

    Abstract: The autoimmune exocrinopathy Sjögren's syndrome (SS) is characterized by mononuclear cell (MNC) infiltrates of exocrine glands and overactivity of B lymphocytes. Although T cells have long been perceived as the prime effectors, increasing evidence ... ...

    Abstract The autoimmune exocrinopathy Sjögren's syndrome (SS) is characterized by mononuclear cell (MNC) infiltrates of exocrine glands and overactivity of B lymphocytes. Although T cells have long been perceived as the prime effectors, increasing evidence indicates that the key role is rather served by B cells. Among related abnormalities are rheumatoid factor (RF), anti-SSA/Ro, and anti-SSB/La antibodies (Ab). Also, supporting this view is our finding of an increase in the number of circulating naïve mature B (Bm) cells, with a reciprocal decrease in that of memory B cells. Furthermore, a ratio of Bm2-plus-Bm2' cells to early Bm5-plus-late Bm5 above 5 is diagnostic. This variation partly reflects the migration of active memory B cells into the exocrine glands of the patients, as well as into their skin. More recently, the B-cell-activating factor of the TNF family (BAFF) has been endorsed with a pivotal role in B-cell survival and hence implicated in the pathogenesis of autoimmunity. In practice, B cells have turned quite attractive as a target for biotherapy. For example, treatment with anti-CD20 Ab has afforded some benefits in this disease, while BAFF blockers are still on the way, but should expand our armamentarium for treating SS. With such B-cell-directed biotherapies in mind, we delineate herein the distinguishing traits of B lymphocytes in SS.
    MeSH term(s) Antigens, CD/analysis ; B-Lymphocyte Subsets/chemistry ; B-Lymphocyte Subsets/classification ; B-Lymphocyte Subsets/immunology ; B-Lymphocyte Subsets/metabolism ; Cytokines/metabolism ; Humans ; Lymphocyte Count ; Salivary Glands/immunology ; Salivary Glands/pathology ; Sjogren's Syndrome/diagnosis ; Sjogren's Syndrome/drug therapy ; Sjogren's Syndrome/immunology
    Chemical Substances Antigens, CD ; Cytokines
    Language English
    Publishing date 2014-09
    Publishing country Denmark
    Document type Journal Article ; Review
    ZDB-ID 1290529-x
    ISSN 1601-0825 ; 1354-523X
    ISSN (online) 1601-0825
    ISSN 1354-523X
    DOI 10.1111/odi.12153
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Molecular Connectomics Reveals a Glucagon-Like Peptide 1 Sensitive Neural Circuit for Satiety.

    Webster, Addison N / Becker, Jordan J / Li, Chia / Schwalbe, Dana C / Kerspern, Damien / Karolczak, Eva O / Godschall, Elizabeth N / Belmont-Rausch, Dylan Matthew / Pers, Tune H / Lutas, Andrew / Habib, Naomi / Güler, Ali D / Krashes, Michael J / Campbell, John N

    bioRxiv : the preprint server for biology

    2023  

    Abstract: Liraglutide and other agonists of the glucagon-like peptide 1 receptor (GLP-1RAs) are effective weight loss drugs, but how they suppress appetite remains unclear. GLP-1RAs inhibit hunger-promoting Agouti-related peptide (AgRP) neurons of the arcuate ... ...

    Abstract Liraglutide and other agonists of the glucagon-like peptide 1 receptor (GLP-1RAs) are effective weight loss drugs, but how they suppress appetite remains unclear. GLP-1RAs inhibit hunger-promoting Agouti-related peptide (AgRP) neurons of the arcuate hypothalamus (Arc) but only indirectly, implicating synaptic afferents to AgRP neurons. To investigate, we developed a method combining rabies-based connectomics with single-nuclei transcriptomics. Applying this method to AgRP neurons in mice predicts 21 afferent subtypes in the mediobasal and paraventricular hypothalamus. Among these are
    Language English
    Publishing date 2023-11-03
    Publishing country United States
    Document type Preprint
    DOI 10.1101/2023.10.31.564990
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: B lymphocytes in nonorgan-specific autoimmune diseases: implications for therapy.

    Youinou, P / Pers, J-O

    Lupus

    2012  Volume 21, Issue 13, Page(s) 1375–1377

    MeSH term(s) Animals ; Antibodies, Monoclonal/therapeutic use ; Autoimmune Diseases/drug therapy ; Autoimmune Diseases/immunology ; Autoimmunity/drug effects ; B-Cell Activating Factor/metabolism ; B-Lymphocytes/drug effects ; B-Lymphocytes/immunology ; CD5 Antigens/metabolism ; Humans ; Immunosuppressive Agents/therapeutic use ; Signal Transduction ; Tumor Necrosis Factor Ligand Superfamily Member 13/metabolism
    Chemical Substances Antibodies, Monoclonal ; B-Cell Activating Factor ; CD5 Antigens ; Immunosuppressive Agents ; Tumor Necrosis Factor Ligand Superfamily Member 13
    Language English
    Publishing date 2012-11
    Publishing country England
    Document type Editorial
    ZDB-ID 1154407-7
    ISSN 1477-0962 ; 0961-2033
    ISSN (online) 1477-0962
    ISSN 0961-2033
    DOI 10.1177/0961203312460901
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: CD5 and B lymphocyte responses: multifaceted effects through multitudes of pathways and channels.

    Taher, Taher E / Bystrom, Jonas / Mignen, Olivier / Pers, Jacques-Olivier / Renaudineau, Yves / Mageed, Rizgar A

    Cellular & molecular immunology

    2020  Volume 17, Issue 11, Page(s) 1201–1203

    MeSH term(s) B-Lymphocytes/immunology ; CD5 Antigens/metabolism ; Cell Line, Tumor ; Cell Survival ; Humans ; Interleukin-10/metabolism ; Models, Biological ; Signal Transduction ; T-Lymphocytes/immunology
    Chemical Substances CD5 Antigens ; Interleukin-10 (130068-27-8)
    Language English
    Publishing date 2020-07-01
    Publishing country China
    Document type Letter
    ZDB-ID 2435097-7
    ISSN 2042-0226 ; 1672-7681
    ISSN (online) 2042-0226
    ISSN 1672-7681
    DOI 10.1038/s41423-020-0490-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Prise en charge des patients sous anticorps thérapeutiques en odontostomatologie.

    Demoersman, J / Soueidan, A / Corre, P / Pers, J O

    Revue de stomatologie, de chirurgie maxillo-faciale et de chirurgie orale

    2014  Volume 115, Issue 3, Page(s) 152–163

    Abstract: Immunotherapies, particularly therapeutic antibodies, are increasingly used in the treatment of many autoimmune or oncological diseases. Patients treated with therapeutic antibodies may present with an increased risk of infection or of osteonecrosis of ... ...

    Title translation Managing patients with therapeutic antibodies in odontostomatology.
    Abstract Immunotherapies, particularly therapeutic antibodies, are increasingly used in the treatment of many autoimmune or oncological diseases. Patients treated with therapeutic antibodies may present with an increased risk of infection or of osteonecrosis of the jaws (ONJ). There is currently no consensus on the management of patients treated with therapeutic antibodies. These treatments are mainly used in hospitals, but they have been increasingly prescribed in ambulatory treatment for patients undergoing oral care. It is therefore important to establish therapeutic precautions for these patients. We had for aim to describe these antibody therapies, their indications, their potentially adverse effects in the oral cavity and to review the latest recommendations.
    MeSH term(s) Antibodies/adverse effects ; Autoimmune Diseases/complications ; Autoimmune Diseases/therapy ; Humans ; Immunotherapy/adverse effects ; Immunotherapy/methods ; Neoplasms/complications ; Neoplasms/therapy ; Oral Medicine/methods ; Practice Guidelines as Topic ; Stomatognathic Diseases/diagnosis ; Stomatognathic Diseases/etiology ; Stomatognathic Diseases/therapy
    Chemical Substances Antibodies
    Language French
    Publishing date 2014-06
    Publishing country France
    Document type English Abstract ; Journal Article ; Review
    ISSN 2213-6541
    ISSN (online) 2213-6541
    DOI 10.1016/j.revsto.2014.03.004
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Hypothalamic hormone-sensitive lipase regulates appetite and energy homeostasis.

    Hundahl, Cecilie / Kotzbeck, Petra / Burm, Hayley B / Christiansen, Søren H / Torz, Lola / Helge, Aske W / Madsen, Martin P / Ratner, Cecilia / Serup, Annette K / Thompson, Jonatan J / Eichmann, Thomas O / Pers, Tune H / Woldbye, David P D / Piomelli, Daniele / Kiens, Bente / Zechner, Rudolf / Skov, Louise J / Holst, Birgitte

    Molecular metabolism

    2021  Volume 47, Page(s) 101174

    Abstract: Objective: The goal of this study was to investigate the importance of central hormone-sensitive lipase (HSL) expression in the regulation of food intake and body weight in mice to clarify whether intracellular lipolysis in the mammalian hypothalamus ... ...

    Abstract Objective: The goal of this study was to investigate the importance of central hormone-sensitive lipase (HSL) expression in the regulation of food intake and body weight in mice to clarify whether intracellular lipolysis in the mammalian hypothalamus plays a role in regulating appetite.
    Methods: Using pharmacological and genetic approaches, we investigated the role of HSL in the rodent brain in the regulation of feeding and energy homeostasis under basal conditions during acute stress and high-fat diet feeding.
    Results: We found that HSL, a key enzyme in the catabolism of cellular lipid stores, is expressed in the appetite-regulating centers in the hypothalamus and is activated by acute stress through a mechanism similar to that observed in adipose tissue and skeletal muscle. Inhibition of HSL in rodent models by a synthetic ligand, global knockout, or brain-specific deletion of HSL prevents a decrease in food intake normally seen in response to acute stress and is associated with the increased expression of orexigenic peptides neuropeptide Y (NPY) and agouti-related peptide (AgRP). Increased food intake can be reversed by adeno-associated virus-mediated reintroduction of HSL in neurons of the mediobasal hypothalamus. Importantly, metabolic stress induced by a high-fat diet also enhances the hyperphagic phenotype of HSL-deficient mice. Specific deletion of HSL in the ventromedial hypothalamic nucleus (VMH) or AgRP neurons reveals that HSL in the VMH plays a role in both acute stress-induced food intake and high-fat diet-induced obesity.
    Conclusions: Our results indicate that HSL activity in the mediobasal hypothalamus is involved in the acute reduction in food intake during the acute stress response and sensing of a high-fat diet.
    MeSH term(s) Agouti-Related Protein/metabolism ; Animals ; Appetite/physiology ; Body Weight ; Diet, High-Fat/adverse effects ; Eating ; Energy Metabolism ; Female ; Homeostasis ; Hyperphagia/metabolism ; Hypothalamus/metabolism ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Knockout ; Neurons/metabolism ; Neuropeptide Y/metabolism ; Obesity/metabolism ; RNA Splicing Factors ; Sterol Esterase/genetics ; Sterol Esterase/metabolism ; Stress, Physiological/genetics ; Transcriptome
    Chemical Substances Agouti-Related Protein ; Neuropeptide Y ; RNA Splicing Factors ; Sf1 protein, mouse ; Sterol Esterase (EC 3.1.1.13)
    Language English
    Publishing date 2021-02-05
    Publishing country Germany
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2708735-9
    ISSN 2212-8778 ; 2212-8778
    ISSN (online) 2212-8778
    ISSN 2212-8778
    DOI 10.1016/j.molmet.2021.101174
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: GLP-1 and nicotine combination therapy engages hypothalamic and mesolimbic pathways to reverse obesity.

    Falk, Sarah / Petersen, Jonas / Svendsen, Charlotte / Romero-Leguizamón, Cesar R / Jørgensen, Søren Heide / Krauth, Nathalie / Ludwig, Mette Q / Lundø, Kathrine / Roostalu, Urmas / Skovbjerg, Grethe / Nielsen, Duy Anh Gurskov / Ejdrup, Aske Lykke / Pers, Tune H / Dmytriyeva, Oksana / Hecksher-Sørensen, Jacob / Gether, Ulrik / Kohlmeier, Kristi A / Clemmensen, Christoffer

    Cell reports

    2023  Volume 42, Issue 5, Page(s) 112466

    Abstract: Glucagon-like peptide-1 receptor (GLP-1R) agonists promote nicotine avoidance. Here, we show that the crosstalk between GLP-1 and nicotine extends beyond effects on nicotine self-administration and can be exploited pharmacologically to amplify the anti- ... ...

    Abstract Glucagon-like peptide-1 receptor (GLP-1R) agonists promote nicotine avoidance. Here, we show that the crosstalk between GLP-1 and nicotine extends beyond effects on nicotine self-administration and can be exploited pharmacologically to amplify the anti-obesity effects of both signals. Accordingly, combined treatment with nicotine and the GLP-1R agonist, liraglutide, inhibits food intake and increases energy expenditure to lower body weight in obese mice. Co-treatment with nicotine and liraglutide gives rise to neuronal activity in multiple brain regions, and we demonstrate that GLP-1R agonism increases excitability of hypothalamic proopiomelanocortin (POMC) neurons and dopaminergic neurons in the ventral tegmental area (VTA). Further, using a genetically encoded dopamine sensor, we reveal that liraglutide suppresses nicotine-induced dopamine release in the nucleus accumbens in freely behaving mice. These data support the pursuit of GLP-1R-based therapies for nicotine dependence and encourage further evaluation of combined treatment with GLP-1R agonists and nicotinic receptor agonists for weight loss.
    MeSH term(s) Mice ; Animals ; Glucagon-Like Peptide 1/pharmacology ; Liraglutide/pharmacology ; Nicotine/pharmacology ; Dopamine ; Obesity/drug therapy ; Obesity/metabolism
    Chemical Substances Glucagon-Like Peptide 1 (89750-14-1) ; Liraglutide (839I73S42A) ; Nicotine (6M3C89ZY6R) ; Dopamine (VTD58H1Z2X)
    Language English
    Publishing date 2023-05-05
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2649101-1
    ISSN 2211-1247 ; 2211-1247
    ISSN (online) 2211-1247
    ISSN 2211-1247
    DOI 10.1016/j.celrep.2023.112466
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Defective DNA methylation in salivary gland epithelial acini from patients with Sjögren's syndrome is associated with SSB gene expression, anti-SSB/LA detection, and lymphocyte infiltration.

    Konsta, O D / Le Dantec, C / Charras, A / Cornec, D / Kapsogeorgou, E K / Tzioufas, A G / Pers, J O / Renaudineau, Y

    Journal of autoimmunity

    2016  Volume 68, Page(s) 30–38

    Abstract: The pathogenesis of primary Sjögren's syndrome (pSS) is complex, in part due to DNA methylation abnormalities. This study was undertaken to evaluate the importance of global DNA methylation ((5m)C) as determined in minor salivary glands (MSG) from well ... ...

    Abstract The pathogenesis of primary Sjögren's syndrome (pSS) is complex, in part due to DNA methylation abnormalities. This study was undertaken to evaluate the importance of global DNA methylation ((5m)C) as determined in minor salivary glands (MSG) from well characterized pSS patients. Twenty-two pSS patients and ten controls were selected, and MSG were stained with anti-(5m)C, anti-(5m)C/anti-cytokeratin (KRT)19, or with anti-SSB/La antibodies (Ab). The DNA methylation status at the SSB gene promoter P1 and P1' was evaluated by methylation-sensitive restriction enzymes (MSRE) coupled with PCR. The effect of the DNA demethylating drug 5 azacytidine (5-Aza) was tested in the human salivary gland (HSG) cell line. In pSS, the reduction of global DNA methylation ((5m)C) was associated with lymphocyte infiltration, the emergence of (5m)C(low) and KRT19(high) acini, and the detection of circulating anti-SSB/La Ab, but not with disease activity (ESSDAI). Next, treating HSG cells with 5-Aza was effective in inducing SSB expression. Finally in pSS patients positive for anti-SSB/La Ab, we further observed DNA demethylation at the SSB gene promoter P1 with consequent SSB overexpression at both the transcriptional and protein levels in salivary gland epithelial cells. In conclusion, our results highlight the importance of DNA methylation in the pathophysiology of pSS and to the emergence of anti-SSB/La Ab.
    MeSH term(s) Adult ; Aged ; Aged, 80 and over ; Antibodies, Antinuclear/immunology ; Azacitidine/pharmacology ; DNA Methylation ; Female ; Gene Expression Regulation/drug effects ; Humans ; Lymphocytes/immunology ; Lymphocytes/metabolism ; Lymphocytes/pathology ; Male ; Middle Aged ; Phosphoproteins/genetics ; Phosphoproteins/immunology ; Salivary Glands, Minor/immunology ; Salivary Glands, Minor/metabolism ; Sjogren's Syndrome/diagnosis ; Sjogren's Syndrome/genetics ; Sjogren's Syndrome/immunology ; Young Adult
    Chemical Substances Antibodies, Antinuclear ; La protein, human ; Phosphoproteins ; SS-B antibodies ; Azacitidine (M801H13NRU)
    Language English
    Publishing date 2016-04
    Publishing country England
    Document type Journal Article ; 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.2015.12.002
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  9. Article ; Online: Intravenous immunoglobulin induces anergy statelike of auto-reactive B lymphocytes in Sjögren's syndrome.

    Seite, J-F / Pers, J-O / Youinou, P / Hillion, S

    Bulletin du Groupement international pour la recherche scientifique en stomatologie & odontologie

    2011  Volume 50, Issue 2, Page(s) 16–17

    MeSH term(s) B-Lymphocytes ; Clonal Anergy ; Humans ; Immunoglobulins, Intravenous ; Sjogren's Syndrome
    Chemical Substances Immunoglobulins, Intravenous
    Language English
    Publishing date 2011-11-22
    Publishing country Belgium
    Document type Journal Article
    ZDB-ID 604450-5
    ISSN 1647-1377 ; 0250-4693
    ISSN (online) 1647-1377
    ISSN 0250-4693
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  10. Article ; Online: Integrative epigenomics in Sjögren´s syndrome reveals novel pathways and a strong interaction between the HLA, autoantibodies and the interferon signature.

    Teruel, María / Barturen, Guillermo / Martínez-Bueno, Manuel / Castellini-Pérez, Olivia / Barroso-Gil, Miguel / Povedano, Elena / Kerick, Martin / Català-Moll, Francesc / Makowska, Zuzanna / Buttgereit, Anne / Pers, Jacques-Olivier / Marañón, Concepción / Ballestar, Esteban / Martin, Javier / Carnero-Montoro, Elena / Alarcón-Riquelme, Marta E

    Scientific reports

    2021  Volume 11, Issue 1, Page(s) 23292

    Abstract: Primary Sjögren's syndrome (SS) is a systemic autoimmune disease characterized by lymphocytic infiltration and damage of exocrine salivary and lacrimal glands. The etiology of SS is complex with environmental triggers and genetic factors involved. By ... ...

    Abstract Primary Sjögren's syndrome (SS) is a systemic autoimmune disease characterized by lymphocytic infiltration and damage of exocrine salivary and lacrimal glands. The etiology of SS is complex with environmental triggers and genetic factors involved. By conducting an integrated multi-omics study, we confirmed a vast coordinated hypomethylation and overexpression effects in IFN-related genes, what is known as the IFN signature. Stratified and conditional analyses suggest a strong interaction between SS-associated HLA genetic variation and the presence of Anti-Ro/SSA autoantibodies in driving the IFN epigenetic signature and determining SS. We report a novel epigenetic signature characterized by increased DNA methylation levels in a large number of genes enriched in pathways such as collagen metabolism and extracellular matrix organization. We identified potential new genetic variants associated with SS that might mediate their risk by altering DNA methylation or gene expression patterns, as well as disease-interacting genetic variants that exhibit regulatory function only in the SS population. Our study sheds new light on the interaction between genetics, autoantibody profiles, DNA methylation and gene expression in SS, and contributes to elucidate the genetic architecture of gene regulation in an autoimmune population.
    MeSH term(s) Autoantibodies ; DNA Methylation/genetics ; Epigenomics ; Female ; Gene Expression/genetics ; Gene Expression Regulation/genetics ; Genetic Variation ; HLA Antigens/genetics ; Humans ; Interferons/genetics ; Male ; Sjogren's Syndrome/etiology ; Sjogren's Syndrome/genetics ; Sjogren's Syndrome/immunology
    Chemical Substances Autoantibodies ; HLA Antigens ; Interferons (9008-11-1)
    Language English
    Publishing date 2021-12-02
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-021-01324-0
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