• Keine Ergebnisse gefunden

Ab Antibody

α-SMA Alpha smooth muscle actin ANOVA Analysis of variance AP-1 Activator protein-1

BC Bundle crossing

BrdU Bromodeoxyuridine

BSA Bovine serum albumin

Ca2+ Calcium ion

CaM Calmodulin

CaMBD Calmodulin binding domain cAMP Cyclic adenosine monophosphate CD31 Cluster of differentiation 31

cDNA Complementary DNA

CHD Coronary heart disease

Cl- Chloride ion

Con Control

CREB cAMP response element-binding protein

CVD Cardiovascular disease

CWS Circumferential wall stress

DAB 3,3'-diaminobenzidine

DNA Deoxyribonucleic acid

DAPI 4',6-diamidino-2-phenylindole

DES Drug-eluting stent

DMEM Dulbecco's modified Eagle's medium

DMSO Dimethyl sulfoxide

eag Éther-a-gogo

EC Endothelial cell

ECM Extracellular matrix

EDHF Endothelium-derived hyperpolarization factor EDTA Ethylenediaminetetraacetic acid

EEL Externa elastic lamina

EGF Epidermal growth factor

EGFR EGF receptor

EGR-1 Early growth response 1

Abbreviations

132

eNOS Endothelial nitric oxide synthase

ER Endoplasmic reticulum

ERK Extracellular-signal regulated kinase Ets E26 transformation-specific

FAK Focal adhesion kinase

FAL Femoral artery ligation

FCS Foetal calf serum

FGF Fibroblast growth factor

FGFR-1 Fibroblast growth factor receptor 1

FN Fibronectin

FSS Fluid shear stress

GF Growth factor

HEK Human embryonic kidney cells

HRP Horseradish peroxidase

HUVECs Human umbilical vein ECs

i.p. Intraperitoneally

ICAM-1 Intercellular adhesion molecule 1 IEL Internal elastic lamina

INM Inner nuclear membrane

K+ Potassium ion

K2P Tandem pore domain K+ channel

KCa1.1 Ca2+-gated K+ channel subfamily M, alpha member 1 KCa3.1 Ca2+-gated K+ channel subfamily N, member 4

KCNE4 Potassium voltage-gated channel subfamily E member 4 Kir Inwardly rectifying K+ channel

Kligand Ligand-activated K+ channels

KO Knockout

KV Voltage-gated K+ channel

KV1.10 Voltage-gated K+ channel subfamily H member 10 KV1.3 Voltage-gated K+ channel subfamily A member 1

LDI Laser Doppler imaging

MAPK Mitogen-activated protein kinase MArSMCs Mouse artery SMCs

MCP-1 Monocyte chemoattractant protein 1 MEJ Myoendothelial junctions

MgTX Margatoxin

Abbreviations mmHg Millimeter of mercury

MMP Matrix metalloproteinase

MP Membrane potential

mRNA Messenger RNA

MRTF Myocardin related transcription factor

MTM Mithramycin A

Na+ Sodium ion

NE Nuclear envelope

NLS Nuclear localization signal

NO Nitric oxide

NPC Nuclear pore complexes

occ Occluded

ONM Outer nuclear membrane

PAD Peripheral artery disease PBS Phosphate-buffered saline

PBST Phosphate-buffered saline 1 % tween 20 PCR Polymerase chain reaction

PDGF-BB Platelet-derived growth factor ß PDGFR Platelet-derived growth factor receptor

p-ERK Phosphorylated ERK

PFA Paraformaldehyde

PM Phenotypic modulation

qPCR Quantitative polymerase chain reaction

RNA Ribonucleic acid

rRNA Ribosomal RNA

RT Room temperature

RTK Receptor tyrosine kinase

SDS Sodium dodecyl sulfate

SDS-PAGE Sodium dodecyl sulfate-polyacrylamide gel electrophoresis SEM Standard error of the mean

SF Selectivity filter

siRNA Small interference RNA SM22-α Smooth muscle 22 alpha

SMC Smooth muscle cell

SMCGM SMC growth medium

SMMHC Smooth muscle myosin heavy chain

Abbreviations

134

Sp/KLF Specificity protein/Krüppel like factor family

Sp1 Specificity protein 1

SRF Serum response factor

TBST Tris-buffered saline 1 % tween 20

TCF Ternary complex factor

TF Transcription factor

TGF-ß Tumor growth factor-ß

TRPV4 Ca2+-channel transient receptor potential cation channel, subfamily V, member 4

UBTF1 Upstream binding transcription factor 1 VCAM-1 Vascular cell adhesion molecule 1 VEGF-A Vascular endothelial growth factor

VSD Voltage-sensing domain

WHO World Health Organisation

Acknowledgments

Acknowledgments

I am indebted to my supervisor PD Dr rer. nat. Elisabeth Deindl for giving me the chance to complete my PhD in such an exciting field of cardiovascular physiology. I appreciate her scientific advice and the freedom she gave me to pursue own ideas. I am also grateful for the helpful suggestions regarding the writing of this manuscript.

I would like to thank Prof Dr Ulrich Pohl for his manifested interest in this project and for allowing me to perform the experiments at the Walter Brendel-Centre.

To Prof Dr Klaus T. Preissner from the Justus-Liebig-University in Giessen for the financial support at the end of the experimental work.

I would like to extend my gratitude to all my colleagues in the lab for the work together and the nice atmosphere these years! I thoroughly enjoyed learning from Dr Omary Chillo the femoral artery ligation model and LDI technique and passing this knowledge to the new PhD students.

To Manuel Lasch, Thomas Lautz and Dr Eike Kleinert for offering assistance whenever needed it. I am also grateful to Christine Csapò for her technical assistance and for taking care of so many organization things. A special thanks to Dr Eike Kleinert for his encouragement and support.

I strongly profited from the cooperative, friendly and international atmosphere at the WBC and I would like to say thank you to many people: Claudia Faney for her technical advices at the cell culture, Dr Michael Lorenz and Stefan Schmitt, for answering so many technical questions, Dr Julian Kirsch and Dr Holger Schneider for the scientific discussions and finally Dr Bettina Pitter, Dr Katharina Nekolla, Dr Sabine Sellner, Dr. Gabriele Zuchtriegel, Dr Louise Ince and Justin Chen for their help and encouragement.

I am deeply grateful to Alba de Juan, not only for her help with fluorescence microscopy but even more for the many scientific discussions, for being there in the bad moments and enjoying the good results as if they were her own ones. For making Mondays more exciting and for the therapeutic swimming hours!

Special thanks to Dr Xiaoling Liang for her personal support and encouragement before and during the thesis. For our cooking times together and long dinner conversations, and phone calls! I am indebted to her for the valuable suggestions regarding the writing of this thesis.

I would like to thank my closest friends in Munich, at home and abroad for their invaluable support.

Acknowledgments

136

Finally, I want to thank the most important people in my life, my family. A mis padres, hacia los que siento un inmenso agradecimiento por enseñarme, alentarme y apoyarme incondicionalmente. My parents, my siblings and brother’s family have always been a source of love, wellness and trust. Without this fortifying family entourage, I would not be where I am.

My children have been a source of energy and inspiration during the writing of this thesis. But this end would not have been possible without the comprehension, generosity and love of my husband, Markus. To him, to our family, I dedicate this work.