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  • 1.
    Olofsson, Peder S.
    et al.
    Center for Bioelectronic Medicine, Department of Medicine, Center for Molecular Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden / Laboratory of Biomedical Science, The Feinstein Institute for Medical Research, Manhasset, New York, USA.
    Steinberg, Benjamin E.
    Laboratory of Biomedical Science, The Feinstein Institute for Medical Research, Manhasset, New York, USA / The Campbell Family Institute for Breast Cancer Research, University Health Network, Toronto, Ontario, Canada.
    Sobbi, Roozbeh
    Division of Cardiology, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada.
    Cox, Maureen A.
    The Campbell Family Institute for Breast Cancer Research, University Health Network, Toronto, Ontario, Canada.
    Ahmed, Mohamed N.
    Center for Heart and Lung Research, The Feinstein Institute for Medical Research, Manhasset, New York, USA.
    Oswald, Michaela
    Robert S. Boas Center for Genomics and Human Genetics, Feinstein Institute for Medical Research, Manhasset, New York, USA.
    Szekeres, Ferenc
    University of Skövde, School of Health and Education. University of Skövde, Health and Education. Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden.
    Hanes, William M.
    Laboratory of Biomedical Science, The Feinstein Institute for Medical Research, Manhasset, New York, USA.
    Introini, Andrea
    Department of Medicine, Solna, Unit of Infectious Diseases, Center for Molecular Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.
    Liu, Shu Fang
    Center for Heart and Lung Research, The Feinstein Institute for Medical Research, Manhasset, New York, USA.
    Holodick, Nichol E.
    Center for Oncology and Cell Biology, The Feinstein Institute for Medical Research, Manhasset, New York, USA.
    Rothstein, Thomas L.
    Center for Oncology and Cell Biology, The Feinstein Institute for Medical Research, Manhasset, New York, USA.
    Lövdahl, Cecilia
    Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden.
    Chavan, Sangeeta S.
    Laboratory of Biomedical Science, The Feinstein Institute for Medical Research, Manhasset, New York, USA.
    Yang, Huan
    Laboratory of Biomedical Science, The Feinstein Institute for Medical Research, Manhasset, New York, USA.
    Pavlov, Valentin A.
    Laboratory of Biomedical Science, The Feinstein Institute for Medical Research, Manhasset, New York, USA.
    Broliden, Kristina
    Department of Medicine, Solna, Unit of Infectious Diseases, Center for Molecular Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.
    Andersson, Ulf
    Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden.
    Diamond, Betty
    The Center for Autoimmune and Musculoskeletal Diseases, The Feinstein Institute for Medical Research, Manhasset, New York, USA.
    Miller, Edmund J.
    Center for Heart and Lung Research, The Feinstein Institute for Medical Research, Manhasset, New York, USA.
    Arner, Anders
    Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden.
    Gregersen, Peter K.
    Robert S. Boas Center for Genomics and Human Genetics, Feinstein Institute for Medical Research, Manhasset, New York, USA.
    Backx, Peter H.
    Division of Cardiology, Peter Munk Cardiac Centre, University Health Network, Toronto, Ontario, Canada / Department of Biology, York University, Toronto, Ontario, Canada.
    Mak, Tak W.
    The Campbell Family Institute for Breast Cancer Research, University Health Network, Toronto, Ontario, Canada.
    Tracey, Kevin J.
    Laboratory of Biomedical Science, The Feinstein Institute for Medical Research, Manhasset, New York, USA.
    Blood pressure regulation by CD4lymphocytes expressing choline acetyltransferase2016In: Nature Biotechnology, ISSN 1087-0156, E-ISSN 1546-1696, Vol. 34, no 10, p. 1066-1071Article in journal (Refereed)
    Abstract [en]

    Blood pressure regulation is known to be maintained by a neuro-endocrine circuit, but whether immune cells contribute to blood pressure homeostasis has not been determined. We previously showed that CD4(+) T lymphocytes that express choline acetyltransferase (ChAT), which catalyzes the synthesis of the vasorelaxant acetylcholine, relay neural signals(1). Here we show that these CD4(+)CD44(hi)CD62L(Io) T helper cells by gene expression are a distinct T-cell population defined by ChAT (CD4 T-ChAT). Mice lacking ChAT expression in CD4(+) cells have elevated arterial blood pressure, compared to littermate controls. Jurkat T cells overexpressing ChAT (JT(ChAT)) decreased blood pressure when infused into mice. Co-incubation of JT(ChAT) and endothelial cells increased endothelial cell levels of phosphorylated endothelial nitric oxide synthase, and of nitrates and nitrites in conditioned media, indicating increased release of the potent vasorelaxant nitric oxide. The isolation and characterization of CD4 T-ChAT cells will enable analysis of the role of these cells in hypotension and hypertension, and may suggest novel therapeutic strategies by targeting cell-mediated vasorelaxation.

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