Comparative Analyses of Murine and Human Formyl Peptide Receptor 3
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Aus der Fachrichtung Physiologie – Prof. Dr. Dr. Frank Zufall Theoretische Medizin und Biowissenschaften der Medizinischen Fakultät der Universität des Saarlandes, Homburg Comparative Analyses of Murine and Human Formyl Peptide Receptor 3 Dissertation zur Erlangung des Grades eines Doktors der Naturwissenschaften der Medizinischen Fakultät der UNIVERSITÄT DES SAARLANDES 2017 vorgelegt von: Hendrik Stempel geb. am: 22.12.1985 in Homburg Es gibt Stunden, in denen der Mensch von aller Unzulänglichkeit befreit ist. Man steht dann auf einem kleinen Flecken eines kleinen Planeten, schaut erstaunt die Schönheit des Ewigen, des in der Tiefe Unergründlichen. Man fühlt, es gibt nicht mehr Werden und Vergehen, es gibt nicht mehr Tod und Leben, sondern nur das Sein. Albert Einstein The following manuscripts emerged from this thesis: Stempel H, Jung M, Pérez-Gómez A, Leinders-Zufall T, Zufall F, Bufe B (2016) Strain- specific loss of formyl peptide receptor 3 in the murine vomeronasal and immune systems. J Biol Chem 291: 9762-9775 Stempel H, Zufall F, Bufe B. Evidence for an Orthologous Function of Mouse and Human Formyl Peptide Receptor 3. In preparation Table of Contents List of Figures ......................................................................................................................... IV List of Tables ........................................................................................................................... VI Abstract ................................................................................................................................. VII Zusammenfassung ............................................................................................................... VIII Abbreviations ........................................................................................................................... X 1 INTRODUCTION ........................................................................................ 1 1.1 Social Recognition and Olfactory Pathogen Recognition ........................................... 1 1.2 The Vomeronasal Organ .............................................................................................. 3 1.2.1 General Function of the Vomeronasal Organ ...................................................... 3 1.2.2 Anatomy of the Vomeronasal Organ.................................................................... 4 1.2.3 Detection Mechanisms in the Vomeronasal Organ .............................................. 6 1.2.3.1 Vmn1r Expressing Vomeronasal Sensory Neurons .......................................... 6 1.2.3.2 Vmn2r Expressing Vomeronasal Sensory Neurons .......................................... 7 1.2.3.3 Formyl Peptide Receptor Expressing Vomeronasal Sensory Neurons ............ 8 1.3 Formyl Peptide Receptors ........................................................................................... 9 1.3.1 General Function of Formyl Peptide Receptors ................................................... 9 1.3.2 Genetics of Formyl Peptide Receptors ............................................................... 11 1.3.3 Tissue Distribution of Formyl Peptide Receptors .............................................. 12 1.3.4 Relationship between Murine and Human Formyl Peptide Receptors .............. 13 1.4 Aims of this Work ..................................................................................................... 14 2 EXPERIMENTAL PROCEDURES ......................................................... 15 2.1 Ligands ...................................................................................................................... 15 2.1.1 Synthetic Ligands ............................................................................................... 15 2.1.2 Natural Ligands .................................................................................................. 16 2.2 Mouse Strains ............................................................................................................ 17 2.3 Molecular Biology ..................................................................................................... 17 2.3.1 Oligonucleotides ................................................................................................. 17 2.3.1.1 Sequencing Primers ........................................................................................ 18 2.3.1.2 PCR Primers ................................................................................................... 18 2.3.2 Polymerase Chain Reaction ............................................................................... 19 2.3.3 PCR Templates ................................................................................................... 19 2.3.4 RNA Isolation .................................................................................................... 20 2.3.5 cDNA Synthesis ................................................................................................. 21 2.3.6 Extraction of Genomic DNA .............................................................................. 21 2.3.7 Purification of PCR Products ............................................................................. 21 2.3.8 Gel Electrophoresis ............................................................................................ 22 2.3.9 RNA Quantification ........................................................................................... 22 2.3.10 Enzymatic DNA Digestion ................................................................................. 22 2.3.11 Expression Vectors ............................................................................................. 22 2.3.12 DNA Ligation ..................................................................................................... 24 2.3.13 Transformation of Competent Escherichia coli ................................................. 24 2.3.14 Isolation of Plasmid DNA from Bacterial Cultures ........................................... 24 2.3.15 Determining DNA and RNA Concentration ...................................................... 25 2.3.16 DNA Sequencing ................................................................................................ 25 2.3.17 Generation of Bacterial Glycerol Stocks ............................................................ 25 2.3.18 Formyl Peptide Receptor Genes ......................................................................... 25 2.4 HEK293T Cell Culture .............................................................................................. 26 I 2.4.1 HEK293T Cells .................................................................................................. 26 2.4.2 Cell Culture Media ............................................................................................. 26 2.4.3 Cultivating Culture Cells .................................................................................... 26 2.4.4 Transient Transfection of Culture Cells ............................................................. 27 2.4.5 Thawing of Cryopreserved Culture Cells ........................................................... 27 2.4.6 Storage of Culture Cells ..................................................................................... 27 2.5 High-Throughput Calcium Imaging .......................................................................... 28 2.5.1 Cell Population Calcium Imaging ...................................................................... 28 2.5.1.1 Dye Loading of HEK293T Cells for Cell Population Calcium Imaging ........ 28 2.5.1.2 Data Acquisition for Cell Population Calcium Imaging with the FLIPR ...... 28 2.5.1.3 Analysis of FLIPR Experiments ...................................................................... 28 2.5.2 Single Cell Calcium Imaging ............................................................................. 29 2.5.2.1 Dye Loading of HEK293T Cells for Single Cell Calcium Imaging ................ 29 2.5.2.2 Data Acquisition for Single Cell Calcium Imaging with the Bioimager ........ 30 2.5.2.3 Analysis of Bioimager Experiments ................................................................ 30 2.6 Immunocytochemistry ............................................................................................... 31 2.6.1 Preparation of Samples for Immunocytochemistry ............................................ 31 2.6.1.1 Dissociation of Vomeronasal Tissue .............................................................. 31 2.6.1.2 Preparation of Blood Cells ............................................................................. 31 2.6.1.3 Preparation of Bone Marrow Cells ................................................................ 31 2.6.2 Immunostaining Protocol ................................................................................... 32 2.6.2.1 Image Acquisition and Data Analysis for General Immunostainings ............ 32 2.6.3 Antibodies .......................................................................................................... 32 2.6.3.1 Used Antibodies .............................................................................................. 32 2.6.3.2 Generation of Fpr3 Antibodies ....................................................................... 33 2.6.3.3 Peptide-Spot Array Analysis for Antibody Characterization ......................... 34 2.6.3.4 Blocking Peptides ..........................................................................................