Alexandra I Koukourakis

Prof. Alexandra I Koukourakis


Research Focus & Metrics

Academic Career Length

24Years (2003-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
20 April 2010 in Medical Oncology
Verified
Journal Article
Closed access
PDF file
AKAlexandra I Koukourakis
Alexandra I Koukourakis
ESEfthimios Sivridis
Efthimios Sivridis
AFAliki Fiska
Aliki Fiska
Michael I. KoukourakisMichael I. Koukourakis
Michael I. Koukourakis

22 September 2021 in JCI Insight
Verified
Journal Article
Open access
PDF file
ACAkrivi Chrysanthopoulou
Akrivi Chrysanthopoulou
EGEugenia Gkaliagkousi
Eugenia Gkaliagkousi
ALAntonios Lazaridis
Antonios Lazaridis
SAStella Arelaki
Stella Arelaki
PPPanagiotis Pateinakis
Panagiotis Pateinakis
PSPanagiotis Skendros
Panagiotis Skendros
Innate immunity and chronic inflammation are involved in atherosclerosis and atherothrombosis, leading to target organ damage in essential hypertension (EH). However, the role of neutrophils in EH is still elusive. We investigated the association between angiotensin II (Ang II) and neutrophil extracellular traps (NETs) in pathogenesis of EH. Plasma samples, kidney biopsies, and surgical specimens of abdominal aortic aneurysms (AAAs) from patients with EH were used. Cell-based assays, NETs/human aortic endothelial cell cocultures, and in situ studies were performed. Increased plasma levels of NETs and tissue factor (TF) activity were detected in untreated, newly diagnosed patients with EH. Stimulation of control neutrophils with plasma from patients with untreated EH generated TF-enriched NETs promoting endothelial collagen production. Ang II induced NETosis in vitro via an ROS/peptidylarginine deiminase type 4 and autophagy-dependent pathway. Circulating NETs and thrombin generation levels were reduced substantially in patients with EH starting treatment with Ang II receptor blockers, whereas their plasma was unable to trigger procoagulant NETs. Moreover, TF-bearing NETotic neutrophils/remnants accumulated in sites of interstitial renal fibrosis and in the subendothelial layer of AAAs. These data reveal the important pathogenic role of an Ang II/ROS/NET/TF axis in EH, linking thromboinflammation with endothelial dysfunction and fibrosis.

1 October 2011 in Gynecologic Oncology
Verified
Journal Article
Closed access
AKAlexandra I Koukourakis
Alexandra I Koukourakis
MKMichael I. Koukourakis
Michael I. Koukourakis
Anastasios V. KoutsopoulosAnastasios V. Koutsopoulos
Anastasios V. Koutsopoulos
PCPelagia Chloropoulou
Pelagia Chloropoulou
VLVasileios Liberis
Vasileios Liberis
ESEfthimios Sivridis
Efthimios Sivridis

1 October 2020 in Life Sciences
Verified
Journal Article
Closed access
AKAlexandra I Koukourakis
Alexandra I Koukourakis
MKMaria Kouroupi
Maria Kouroupi
SPStamatia Pouliliou
Stamatia Pouliliou
AMAchilleas Mitrakas
Achilleas Mitrakas
FHFatma Hasan
Fatma Hasan
MKMichael I. Koukourakis
Michael I. Koukourakis

1 July 2011 in Chest
Verified
Journal Article
Closed access
GKGeorgia Karpathiou
Georgia Karpathiou
ESEfthimios Sivridis
Efthimios Sivridis
MKMichael I. Koukourakis
Michael I. Koukourakis
DMDimitrios Mikroulis
Dimitrios Mikroulis
DBDEMOSTHENES BOUROS BOUROS
DEMOSTHENES BOUROS BOUROS
AKAlexandra I Koukourakis
Alexandra I Koukourakis

22 May 2020 in Clinical and Translational Oncology
Verified
Journal Article
Closed access
PDF file
Michael I. KoukourakisMichael I. Koukourakis
Michael I. Koukourakis
AKAlexandra I Koukourakis
Alexandra I Koukourakis