Iason Psilopatis

Dr. Iason Psilopatis

Charité - Universitätsmedizin Berlin, Berlin, Germany
orcid

Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

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

Representative Publications

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Verified
Journal Article
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Iason PsilopatisIason Psilopatis
Iason Psilopatis
Christos DamaskosChristos Damaskos
Christos Damaskos
AGANNA GARMPI
ANNA GARMPI
Panagiotis SarantisPanagiotis Sarantis
Panagiotis Sarantis
Evangelos KoustasEvangelos Koustas
Evangelos Koustas
Nikolaos GarmpisNikolaos Garmpis
Nikolaos Garmpis
Unresectable hepatocellular carcinoma (HCC) is an advanced primary liver malignancy with a poor prognosis. The Food and Drug Administration (FDA) has, to date, approved nivolumab, pembrolizumab, ramucirumab, nivolumab/ipilimumab, atezolizumab/bevacizumab, as well as tremelimumab/durvalumab, as first- or second-line monoclonal antibodies (mAbs) for unresectable HCC. The present review examines the current state of knowledge, and provides a useful update on the safety and efficacy of these therapeutic agents, thus attempting to define the suitability of each mAb for different patient subgroups.

10 April 2023 in Cancers
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Iason PsilopatisIason Psilopatis
Iason Psilopatis
Nikolaos GarmpisNikolaos Garmpis
Nikolaos Garmpis
AGANNA GARMPI
ANNA GARMPI
KVKleio Vrettou
Kleio Vrettou
Panagiotis SarantisPanagiotis Sarantis
Panagiotis Sarantis
Christos DamaskosChristos Damaskos
Christos Damaskos
Cervical carcinoma is one of the most common cancers among women globally. Histone deacetylase inhibitors (HDACIs) constitute anticancer drugs that, by increasing the histone acetylation level in various cell types, induce differentiation, cell cycle arrest, and apoptosis. The aim of the current review is to study the role of HDACIs in the treatment of cervical cancer. A literature review was conducted using the MEDLINE and LIVIVO databases with a view to identifying relevant studies. By employing the search terms “histone deacetylase” and “cervical cancer”, we managed to identify 95 studies published between 2001 and 2023. The present work embodies the most up-to-date, comprehensive review of the literature centering on the particular role of HDACIs as treatment agents for cervical cancer. Both well-established and novel HDACIs seem to represent modern, efficacious anticancer drugs, which, alone or in combination with other treatments, may successfully inhibit cervical cancer cell growth, induce cell cycle arrest, and provoke apoptosis. In summary, histone deacetylases seem to represent promising future treatment targets in cervical cancer.

23 April 2023 in Cells
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Journal Article
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Iason PsilopatisIason Psilopatis
Iason Psilopatis
KVKleio Vrettou
Kleio Vrettou
FFFlorian Nima Fleckenstein
Florian Nima Fleckenstein
Stamatios TheocharisStamatios Theocharis
Stamatios Theocharis
Endometriosis is a chronic disorder of the female reproductive system which afflicts a great number of women worldwide. Histone deacetylases (HDACs) prevent the relaxation of chromatin, thereby positively or negatively modulating gene transcription. The current review aims at studying the impact of histone modifications and their therapeutic targeting in endometriosis. In order to identify relevant studies, a literature review was conducted using the MEDLINE and LIVIVO databases. The current manuscript represents the most comprehensive, up-to-date review of the literature focusing on the particular role of HDACs and their inhibitors in the context of endometriosis. HDAC1, HDAC2, HDAC3, Sirtuin 1, and Sirtuin 3, are the five most studied HDAC enzymes which seem to, at least partly, influence the pathophysiology of endometriosis. Both well-established and novel HDACIs could possibly represent modern, efficacious anti-endometriotic drug agents. Altogether, histone modifications and their therapeutic targeting have been proven to have a strong impact on endometriosis.

Verified
Journal Article
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Nikolaos GarmpisNikolaos Garmpis
Nikolaos Garmpis
Christos DamaskosChristos Damaskos
Christos Damaskos
DDDimitrios Dimitroulis
Dimitrios Dimitroulis
GKGregory Kouraklis
Gregory Kouraklis
AGANNA GARMPI
ANNA GARMPI
ANAfrodite Nonni
Afrodite Nonni
Background/Aim: There is a strong association between malignancy and histone deacetylases (HDACs). Histone deacetylase inhibitors (HDACIs) are now being tested as antitumor agents in various clinical trials. We aimed to assess the clinical importance of HDAC-2 in breast cancer (BC). Materials and Methods: A total of 118 BC specimens were examined immunohistochemically. A statistical analysis was conducted in order to examine the relation between HDAC-2 and the clinicopathological features and survival of the patients. Results: Higher HDAC-2 expression was related to lobular histological type of cancer, grade III, and stage III BC. In addition, the disease-free period and overall survival were curtailed and negatively related to the over-expression of HDAC-2. Other factors correlating with worse survival were histological types other than ductal or lobular, and the stage of the disease. Conclusions: This study showed a relationship between HDAC-2 and BC. Further studies are required in order to eventually potentiate the role of HDACIs as anticancer agents in BC.

17 February 2023 in Cells
Verified
Journal Article
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Iason PsilopatisIason Psilopatis
Iason Psilopatis
KVKleio Vrettou
Kleio Vrettou
FFFlorian Nima Fleckenstein
Florian Nima Fleckenstein
Stamatios TheocharisStamatios Theocharis
Stamatios Theocharis
Preeclampsia is a common pregnancy-related hypertensive disorder. Often presenting as preexisting or new-onset hypertension complicated by proteinuria and/or end-organ dysfunction, preeclampsia significantly correlates with maternal and perinatal morbidity and mortality. Peroxisome proliferator-activated receptors (PPARs) are nuclear receptor proteins that regulate gene expression. In order to investigate the role of PPARs in the pathophysiology of preeclampsia, we conducted a literature review using the MEDLINE and LIVIVO databases. The search terms “peroxisome proliferator-activated receptor”, “PPAR”, and “preeclampsia” were employed and we were able to identify 35 relevant studies published between 2002 and 2022. Different study groups reached contradictory conclusions in terms of PPAR expression in preeclamptic placentae. Interestingly, PPARγ agonists alone, or in combination with well-established pharmaceutical agents, were determined to represent novel, potent anti-preeclamptic treatment alternatives. In conclusion, PPARs seem to play a significant role in preeclampsia.

Verified
Journal Article
Open access
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Christos DamaskosChristos Damaskos
Christos Damaskos
Nikolaos GarmpisNikolaos Garmpis
Nikolaos Garmpis
DDDimitrios Dimitroulis
Dimitrios Dimitroulis
AGANNA GARMPI
ANNA GARMPI
Iason PsilopatisIason Psilopatis
Iason Psilopatis
EAEfstathios A. Antoniou
Efstathios A. Antoniou
Hepatocellular carcinoma (HCC) remains one of the most common malignancies and the third cause of cancer-related death worldwide, with surgery being the best prognostic tool. Among the well-known causative factors of HCC are chronic liver virus infections, chronic virus hepatitis B (HBV) and chronic hepatitis virus C (HCV), aflatoxins, tobacco consumption, and non-alcoholic liver disease (NAFLD). There is a need for the development of efficient molecular markers and alternative therapeutic targets of great significance. In this review, we describe the general characteristics of HCC and present a variety of targeted therapies that resulted in progress in HCC therapy.